- Limits of optimal control yields achievable with quantum controllers

Author(s): Re-Bing Wu, Constantin Brif, Matthew R. James, and Herschel RabitzIn quantum optimal control theory, kinematic bounds are the minimum and maximum values of the control objective achievable … - Bell-inequality tests using asymmetric entangled coherent states in asymmetric lossy environments

Author(s): Chae-Yeun Park and Hyunseok JeongWe study an asymmetric form of the two-mode entangled coherent state (ECS), where the two local amplitudes have different values, as a tool for testing the … - Improving the lifetime of the nitrogen-vacancy-center ensemble coupled with a superconducting flux qubit by applying magnetic fields

Author(s): Yuichiro Matsuzaki, Xiaobo Zhu, Kosuke Kakuyanagi, Hiraku Toida, Takaaki Shimooka, Norikazu Mizuochi, Kae Nemoto, Kouichi Semba, W. J. Munro, Hiroshi Yamaguchi, and Shiro SaitoOne of the pr … - Geometric lower bound for a quantum coherence measure

Author(s): Diego Paiva Pires, Lucas C. Céleri, and Diogo O. Soares-PintoNowadays, geometric tools are being used to treat a huge class of problems of quantum information science. By understanding the … - Simple model for predicting and analyzing magnetically induced Feshbach resonances

Author(s): Jing-Lun Li, Xue-Jin Hu, Gao-Ren Wang, Yong-Chang Han, and Shu-Lin CongWe present a simple theoretical model for describing ultracold-atomic collision dynamics and Feshbach resonances (FRs) … - Laser-assisted XUV double ionization of helium: Energy-sharing dependence of joint angular distributions

Author(s): Aihua Liu and Uwe ThummBy numerically solving the time-dependent Schrödinger equation in full dimensionality, we discuss the dependance of joint photoelectron angular distributions on the e … - Site-selective particle deposition in periodically driven quantum lattices

Author(s): Thomas Wulf, Benno Liebchen, and Peter SchmelcherWe demonstrate that a site-dependent driving of a periodic potential allows for the controlled manipulation of a quantum particle on length … - Gap solitons in spin-orbit-coupled Bose-Einstein condensates in optical lattices

Author(s): Yongping Zhang, Yong Xu, and Thomas BuschWhile different ways to realize spin-orbit coupling in Bose-Einstein condensates exist, not all are currently experimentally implementable. Here we … - Theoretical analysis of dipole-induced electromagnetic transparency

Author(s): Raiju Puthumpally-Joseph, Osman Atabek, Maxim Sukharev, and Eric CharronWe present a detailed, realistic analysis of the implementation of a proposal for dipole-induced electromagnetic tran … - Dissociation of Feshbach molecules via spin-orbit coupling in ultracold Fermi gases

Author(s): Lianghui Huang, Pengjun Wang, Peng Peng, Zengming Meng, Liangchao Chen, Peng Zhang, and Jing ZhangWe study the dissociation of Feshbach molecules in ultracold Fermi gases with spin-orbit (S … - Detection-efficiency loophole and the Pusey-Barrett-Rudolph theorem

Author(s): Arijit Dutta, Marcin Pawłowski, and Marek ŻukowskiThe detection-efficiency loophole poses a significant problem for experimental tests of Bell inequalities. The recently discovered Pusey-Ba … - Protecting the sqrt[SWAP] operation from general and residual errors by continuous dynamical decoupling

Author(s): F. F. Fanchini, R. d. J. Napolitano, B. Çakmak, and A. O. CaldeiraWe study the occurrence of errors in a continuously decoupled two-qubit state during a √SWAP quantum operation under decohe … - Hybrid quantum-state joining and splitting assisted by quantum dots in one-side optical microcavities

Author(s): Ming-Xing Luo, Song-Ya Ma, Xiu-Bo Chen, and Xiaojun WangQuantum state joining has been recently experimentally demonstrated [C. Vitelli et al., Nat. Photon. 7, 521 (2013)10.1038/nphoton.201 ... - Real-time probing of the electron dynamics of an atom in a strong infrared laser field

Author(s): Yunpei Deng (邓蕴沛) and Xinhua Xie (谢新华)We present theoretical studies on real-time probing of the electron density evolution of an atom in a strong infrared (IR) laser field with few-cycle n ... - Probing calculated O_{2}^{+} potential-energy curves with an XUV-IR pump-probe experiment

Author(s): Philipp Cörlin, Andreas Fischer, Michael Schönwald, Alexander Sperl, Tomoya Mizuno, Uwe Thumm, Thomas Pfeifer, and Robert MoshammerWe study dissociative photoionization of molecular oxygen ... - Quasiparticle dispersions and lifetimes in the normal state of the BCS-BEC crossover

Author(s): Matthew D. Reichl and Erich J. MuellerWe compute the spectral density in the normal phase of an interacting homogenous Fermi gas using a T-matrix approximation. We fit the quasiparticle pea ... - Enhancement of the two-photon blockade in a strong-coupling qubit-cavity system

Author(s): Wen-Wu Deng, Gao-Xiang Li, and Hong QinThe output incoherent spectrum and the photon blockade for the two-photon near-resonant excitation are numerically investigated by using the modified ... - Stability and nesting of dissipative vortex solitons with high vorticity

Author(s): B. N. Aleksić, N. B. Aleksić, V. Skarka, and M. BelićUsing the variational method extended to dissipative systems and numerical simulations, an analytical stability criterion is established ... - Weak-light solitons and their active control in a parity-time-symmetric atomic system

Author(s): Chao Hang and Guoxiang HuangWe propose a realistic physical scheme to produce one-dimensional and two-dimensional weak-light solitons in an atomic system with PT symmetry. The system we sug ... - Scattering of two distinguishable photons by a Ξ-type three-level atom in a one-dimensional waveguide

Author(s): T. Y. Li, J. F. Huang, and C. K. LawWe investigate theoretically quantum scattering of two distinguishable photon wave packets from a Ξ-type three-level atom in a one-dimensional waveguide. ... - Nuclear structure effects in light muonic atoms

Author(s): Krzysztof Pachucki and Albert WienczekNuclear structure corrections to energy levels of light muonic atoms are derived with particular attention to the nuclear mass dependence. The obtained ... - Nonequilibrium dissipation-driven steady many-body entanglement

Author(s): Bruno Bellomo and Mauro AntezzaWe study an ensemble of two-level quantum systems (qubits) interacting with a common electromagnetic field in the proximity of a dielectric slab whose tempera ... - Correlation trends in the hyperfine structures of ^{210,212}Fr

Author(s): B. K. Sahoo, D. K. Nandy, B. P. Das, and Y. SakemiWe demonstrate the importance of electron correlation effects in the hyperfine structure constants of many low-lying states in 210Fr and 21 ... - Rydberg-to-M-shell x-ray emission of hollow Xe^{q+} (q=27–30) atoms or ions above metallic surfaces

Author(s): Z. Y. Song (宋张勇), Z. H. Yang (杨治虎), H. Q. Zhang (张红强), J. X. Shao (邵剑雄), Y. Cui (崔莹), Y. P. Zhang (张艳萍), X. A. Zhang (张小安), Y. T. Zhao (赵永涛), X. M. Chen (陈熙萌), and G. Q. Xiao (肖国青)X rays or ... - Manipulation of resonant Auger processes using a strong bichromatic field

Author(s): Souvik Chatterjee and Takashi NakajimaWe theoretically investigate the effects of strong couplings in resonant Auger processes under the combination of strong resonant x-ray and nearly reso ... - Breakdown of the expansion of finite-size corrections to the hydrogen Lamb shift in moments of charge distribution

Author(s): Franziska Hagelstein and Vladimir PascalutsaWe quantify a limitation in the usual accounting of the finite-size effects, where the leading [(Zα)4] and subleading [(Zα)5] contributions to th … - Visualizing operators of coupled spin systems

Author(s): Ariane Garon, Robert Zeier, and Steffen J. GlaserThe state of quantum systems, their energetics, and their time evolution is modeled by abstract operators. How can one visualize such operat … - Interaction-free evolution in the presence of time-dependent Hamiltonians

Author(s): Dariusz Chruściński, Antonino Messina, Benedetto Militello, and Anna NapoliThe generalization of the concept of interaction-free evolutions (IFE) [Napoli et al., Phys. Rev. A 89, 062104 (20 ... - Entanglement witnesses for indistinguishable particles

Author(s): A. Reusch, J. Sperling, and W. VogelWe study the problem of witnessing entanglement among indistinguishable particles. For this purpose, we derive a set of equations which results in necess ... - Hierarchy of Floquet gaps and edge states for driven honeycomb lattices

Author(s): P. M. Perez-Piskunow, L. E. F. Foa Torres, and Gonzalo UsajElectromagnetic driving in a honeycomb lattice can induce gaps and topological edge states with a structure of increasing complexi ... - Optimization of collisional Feshbach cooling of an ultracold nondegenerate gas

Author(s): Marlon Nuske, Eite Tiesinga, and L. MatheyWe optimize a collision-induced cooling process for ultracold atoms in the nondegenerate regime. It makes use of a Feshbach resonance, instead of r ... - Pump-controlled modal interactions in microdisk lasers

Author(s): Seng Fatt Liew, Li Ge, Brandon Redding, Glenn S. Solomon, and Hui CaoWe demonstrate an effective control of nonlinear interactions of lasing modes in a semiconductor microdisk cavity by sha ... - Time-resolved phase-space tomography of an optomechanical cavity

Author(s): Oren Suchoi, Keren Shlomi, Lior Ella, and Eyal BuksWe experimentally study the phase-space distribution (PSD) of a mechanical resonator that is simultaneously coupled to two electromagnetic ... - Phase spectroscopy of topological invariants in photonic crystals

Author(s): A. V. Poshakinskiy, A. N. Poddubny, and M. HafeziWe propose a method of measuring topological invariants of a photonic crystal through phase spectroscopy. We show how the Chern numbers can ... - Precision measurement of branching fractions of ^{138}Ba^{+}: Testing many-body theories below the 1% level

Author(s): D. De Munshi, T. Dutta, R. Rebhi, and M. MukherjeeThe branching fractions from the excited state 6P1/2 of singly charged barium ion has been measured with a precision 0.03% in an ion trap e ... - Expanding the principle of local distinguishability

Author(s): Claudio Carmeli, Teiko Heinosaari, Jussi Schultz, and Alessandro ToigoThe principle of local distinguishability states that an arbitrary physical state of a bipartite system can be determin ... - Linear polarization of x-ray transitions due to dielectronic recombination in highly charged ions

Author(s): Holger Jörg, Zhimin Hu, Hendrik Bekker, Michael A. Blessenohl, Daniel Hollain, Stephan Fritzsche, Andrey Surzhykov, José R. Crespo López-Urrutia, and Stanislav TashenovThe linear polarizati ... - Cold interactions between an Yb^{+} ion and a Li atom: Prospects for sympathetic cooling, radiative association, and Feshbach resonances

Author(s): Michał Tomza, Christiane P. Koch, and Robert MoszynskiThe electronic structure of the (LiYb)+ molecular ion is investigated with two variants of the coupled cluster method restricted to sin ... - Exchange effects and second-order Born corrections in laser-assisted (e,2e) collisions with helium atoms

Author(s): I. Ajana, A. Makhoute, D. Khalil, and S. ChaddouThe triple differential cross section for laser-assisted ionization of a helium target by slow electrons is analyzed within the framework of ... - Experimental observation of saddle points over the quantum control landscape of a two-spin system

Author(s): Qiuyang Sun, István Pelczer, Gregory Riviello, Re-Bing Wu, and Herschel RabitzThe growing successes in performing quantum control experiments motivated the development of control landscape ... - Energy shift of magnons in a ferromagnetic spinor-dipolar Bose-Einstein condensate

Author(s): Hiroki Saito and Masaya KunimiMotivated by the recent experiment performed by the Berkeley group [G. E. Marti et al., Phys. Rev. Lett. 113, 165301 (2014)PRLTAO10.1103/PhysRevLett.113.165301 ... - Transfer of arbitrary two-qubit states via a spin chain

Author(s): S. Lorenzo, T. J. G. Apollaro, S. Paganelli, G. M. Palma, and F. PlastinaWe investigate the fidelity of the quantum state transfer (QST) of two qubits by means of an arbitrary spin-1/2 netw ... - Perturbative approach to continuous-time quantum error correction

Author(s): Matteo Ippoliti, Leonardo Mazza, Matteo Rizzi, and Vittorio GiovannettiWe present a discussion of the continuous-time quantum error correction introduced by J. P. Paz and W. H. Zurek [Proc. ... - Monogamy, polygamy, and other properties of entanglement of purification

Author(s): Shrobona Bagchi and Arun Kumar PatiFor bipartite pure and mixed quantum states, in addition to the quantum mutual information, there is another measure of total correlation, namely, the ent ... - Rydberg-state mixing in the presence of an external electric field: Comparison of the hydrogen and antihydrogen spectra

Author(s): D. Solovyev and E. SolovyevaWe analyze the influence of an external electric field on the ns and np Rydberg states. The impact of an electric field leads to a significant modification of th ... - Interaction quantum quenches in the one-dimensional Fermi-Hubbard model with spin imbalance

Author(s): L. Riegger, G. Orso, and F. Heidrich-MeisnerUsing the time-dependent density matrix renormalization-group method and exact diagonalization, we study the nonequilibrium dynamics of the one-d ... - Upper bound of one-magnon excitation and lower bound of effective mass for ferromagnetic spinor Bose and Fermi gases

Author(s): Masaya Kunimi and Hiroki SaitoUsing a variational method, we derive an exact upper bound for one-magnon excitation energy in ferromagnetic spinor gases, which limits the quantum corrections ... - Analytical solution for the Lévy-like steady-state distribution of intensities in random lasers

Author(s): E. P. Raposo and A. S. L. GomesThe Levy-like steady-state distributions of emission intensities in random lasers are derived analytically, and it is shown that the Levy exponent alpha can a ... - Quantum gas microscopy with spin, atom-number, and multilayer readout

Author(s): Philipp M. Preiss, Ruichao Ma, M. Eric Tai, Jonathan Simon, and Markus GreinerIt is shown how quantum gas microscopy, in which atoms in an optical lattice are imaged with single-site resolu ... - Geometric phase in Stückelberg interferometry

Author(s): Lih-King Lim, Jean-Noël Fuchs, and Gilles MontambauxWe study the time evolution of a two-dimensional quantum particle exhibiting a two-band energy spectrum with two Dirac cones as, for exam ... - Fidelity and trace-norm distances for quantifying coherence

Author(s): Lian-He Shao, Zhengjun Xi, Heng Fan, and Yongming LiWe investigate the coherence measures induced by fidelity and trace norm, based on the coherence quantification recently proposed by Baum ... - Spectra of barium, radium, and element 120: Application of the combined correlation-potential, singles-doubles, and configuration-interaction ab initio methods

Author(s): J. S. M. Ginges and V. A. DzubaWe apply a version of the recently developed approach combining the correlation-potential, linearized singles-doubles coupled-cluster, and configuration-inter ... - Relativistic calculation of the electron-momentum shift in tunneling ionization

Author(s): I. A. IvanovWe describe a procedure for the solution of the time-dependent Dirac equation. The procedure is based on the relativistic generalization of the matrix iteration method. We use t ... - Nonlinear waves in two-component Bose-Einstein condensates: Manakov system and Kowalevski equations

Author(s): A. M. Kamchatnov and V. V. SokolovTraveling waves in two-component Bose-Einstein condensates whose dynamics is described by the Manakov limit of the Gross-Pitaevskii equations are considere ... - Two-body state with p-wave interaction in a one-dimensional waveguide under transversely anisotropic confinement

Author(s): Tian-You Gao, Shi-Guo Peng, and Kaijun JiangWe theoretically study two atoms with p-wave interaction in a one-dimensional waveguide, investigating how the transverse anisotropy of the confi ... - Influence of ablated and tunneled electrons on quasi-phase-matched high-order-harmonic generation in laser-produced plasma

Author(s): Rashid A. Ganeev, Valer Toşa, Katalin Kovács, Masayuki Suzuki, Shin Yoneya, and Hiroto KurodaStudies of the quasi-phase-matched harmonics generated in spatially modulated silver plasma are ... - Optical control of resonant light transmission for an atom-cavity system

Author(s): Arijit Sharma, Tridib Ray, Rahul V. Sawant, G. Sheikholeslami, S. A. Rangwala, and D. BudkerWe demonstrate the manipulation of transmitted light through an optical Fabry-Pérot cavity, built ... - Enhanced propagation of photon density waves in random amplifying media

Author(s): Lalruatfela Renthlei, Harshawardhan Wanare, and S. Anantha RamakrishnaWe demonstrate enhanced wavelike character of diffuse photon density waves (DPDW) in an amplifying random medium. The a ... - Fourier theory of linear gain media

Author(s): Hans Olaf Hågenvik, Markus E. Malema, and Johannes SkaarThe analysis of wave propagation in linear, passive media is usually done by considering a single real frequency (the monochromatic l ... - Quantum optics of chiral spin networks

Author(s): Hannes Pichler, Tomás Ramos, Andrew J. Daley, and Peter ZollerThe dynamics of a driven network of spin-1/2 systems coupled to chiral one-dimensional bosonic waveguides is studied, and the f ... - Dissipative preparation of Chern insulators

Author(s): Jan Carl Budich, Peter Zoller, and Sebastian DiehlEngineered dissipation can be employed to prepare interesting quantum many-body states in a nonequilibrium fashion. The basic idea is to ob ... - Analytical tools for investigating strong-field QED processes in tightly focused laser fields

Author(s): A. Di PiazzaThe present paper is the natural continuation of a recent paper [A. Di Piazza, Phys. Rev. Lett. 113, 040402 (2014)PRLTAO10.1103/PhysRevLett.113.040402], in which the electron wa … - d locally indistinguishable maximally entangled states in C^{d}⊗C^{d}

Author(s): Mao-Sheng Li, Yan-Ling Wang, Shao-Ming Fei, and Zhu-Jun ZhengWe give an explicit construction of d locally indistinguishable, orthogonal maximally entangled states in Cd⊗Cd for any d≥4. Thi … - Implementing a quantum cloning machine in separate cavities via the optical coherent pulse as a quantum communication bus

Author(s): Meng-Zheng Zhu and Liu YeAn efficient scheme is proposed to implement a quantum cloning machine in separate cavities based on a hybrid interaction between electron-spin systems placed in th … - Adaptive real time selection for quantum key distribution in lossy and turbulent free-space channels

Author(s): Giuseppe Vallone, Davide G. Marangon, Matteo Canale, Ilaria Savorgnan, Davide Bacco, Mauro Barbieri, Simon Calimani, Cesare Barbieri, Nicola Laurenti, and Paolo VilloresiThe unconditional s … - Static and dynamic properties of interacting spin-1 bosons in an optical lattice

Author(s): Stefan S. Natu, J. H. Pixley, and S. Das SarmaWe study the physics of interacting spin-1 bosons in an optical lattice using a variational Gutzwiller technique. We compute the mean-field gro … - Cross-Kerr nonlinearity in optomechanical systems

Author(s): Raphaël Khan, F. Massel, and T. T. HeikkiläWe consider the response of a nanomechanical resonator interacting with an electromagnetic cavity via a radiation-pressure coupling and a cross-Ke … - Publisher's Note: Geometric Bell-like inequalities for steering [Phys. Rev. A 91, 032107 (2015)]

Author(s): Marek Żukowski, Arijit Dutta, and Zhi Yin[Phys. Rev. A 91, 049902] Published Tue Apr 14, 2015 - Measurement of ion motional heating rates over a range of trap frequencies and temperatures

Author(s): C. D. Bruzewicz, J. M. Sage, and J. ChiaveriniWe present measurements of the motional heating rate of a trapped ion at different trap frequencies and temperatures between ∼0.6 and 1.5 MHz a … - Tunneling theory for tunable open quantum systems of ultracold atoms in one-dimensional traps

Author(s): R. Lundmark, C. Forssén, and J. RotureauThe creation of tunable open quantum systems is becoming feasible in current experiments with ultracold atoms in low-dimensional traps. In particular … - Proliferation of effective interactions: Decoherence-induced equilibration in a closed many-body system

Author(s): Pablo R. Zangara, Denise Bendersky, and Horacio M. PastawskiWe address the question of how weak perturbations, which are quite ineffective in small many-body systems, can lead to decoherenc … - Leggett-Garg inequality for qubits coupled to thermal environment

Author(s): Marcin Łobejko, Jerzy Łuczka, and Jerzy DajkaWe study violation of the Leggett-Garg inequality for the correlator K3 in two cases: (i) for a qubit weakly coupled to a thermal decohering (di … - Macroscopic noncontextuality as a principle for almost-quantum correlations

Author(s): Joe Henson and Ana Belén SainzQuantum mechanics allows only certain sets of experimental results (or “probabilistic models”) for Bell-type quantum nonlocality experiments. A derivation of t … - Unitary deformations of counterdiabatic driving

Author(s): Kazutaka TakahashiWe study a deformation of the counterdiabatic-driving Hamiltonian as a systematic strategy for an adiabatic control of quantum states. Using a unitary transformation, we d … - Consistency tests of classical and quantum models for a quantum annealer

Author(s): Tameem Albash, Walter Vinci, Anurag Mishra, Paul A. Warburton, and Daniel A. LidarRecently the question of whether the D-Wave processors exhibit large-scale quantum behavior or can be descr … - Reducing the quantum-computing overhead with complex gate distillation

Author(s): Guillaume Duclos-Cianci and David PoulinA scheme to combine the two steps of fault-tolerant quantum computing into a single step is presented, which may dramatically reduce the overhead ass … - Complexity of simulating constant-depth BosonSampling

Author(s): Daniel J. BrodImplementation of exact BosonSampling via optical interferometry is considered, and a proof is given that significantly simplifies the requirements for this model by showing t … - Efficient scheme for experimental quantification of non-Markovianity in high-dimensional systems

Author(s): S.-J. Dong, B.-H. Liu, Y.-J. Han, G.-C. Guo, and Lixin HeThe non-Markovianity is a prominent concept of the dynamics of open quantum systems, which is of fundamental importance in quantum m … - Field ionization of Rydberg atoms in a single-cycle pulse

Author(s): B. C. Yang and F. RobicheauxWe study the ionization of Rydberg atoms in a single-cycle-pulse electric field based on both classical and quantum calculations. The ionization-probability curv … - Nuclear-motion effects in attosecond transient-absorption spectroscopy of molecules

Author(s): Jens E. Bækhøj, Lun Yue, and Lars Bojer MadsenWe investigate the characteristic effects of nuclear motion on attosecond transient-absorption spectra in molecules by calculating the spectrum … - Time scales at quantum phase transitions in the Lipkin-Meshkov-Glick model

Author(s): F. de los Santos, E. Romera, and O. CastañosWe report on quantum revivals and classical periodicities of wave packets centered around the ground state within the Lipkin-Meshkov-Glick model. … - Polar molecules in frustrated triangular ladders

Author(s): Tapan Mishra, Sebastian Greschner, and Luis SantosPolar molecules in geometrically frustrated lattices may result in a very rich landscape of quantum phases, due to the nontrivial interplay … - Fluctuation-driven topological transition of binary condensates in optical lattices

Author(s): K. Suthar, Arko Roy, and D. AngomWe show the emergence of a third Goldstone mode in binary condensates at phase separation in quasi-one-dimensional (quasi-1D) optical lattices. We develop t … - Three-dimensional dimeron as a stable topological object

Author(s): Yong-Kai Liu and Shi-Jie YangSearching for novel topological objects is always an intriguing task for scientists in various fields. We study a three-dimensional (3D) topological structure c … - Dynamical structure factor of one-dimensional Bose gases: Experimental signatures of beyond-Luttinger-liquid physics

Author(s): N. Fabbri, M. Panfil, D. Clément, L. Fallani, M. Inguscio, C. Fort, and J.-S. CauxInteractions are known to have dramatic effects on bosonic gases in one dimension (1D). Not only does the g … - Bosonic hard spheres in quasi-one-dimensional bichromatic optical lattices

Author(s): M. C. Gordillo, C. Carbonell-Coronado, and F. De SotoWe calculated the phase diagram of a continuous system of hard spheres loaded in a quasi-one-dimensional bichromatic optical lattice. Th … - Interferometry with independently prepared Bose-Einstein condensates

Author(s): T. Wasak, P. Szańkowski, and J. ChwedeńczukWhenever the value of an unknown parameter θ is extracted from a series of experiments, the result is inevitably burdened by the uncertainty Δθ. I … - Self-pulsing in Tm-doped YAlO_{3} lasers: Excited-state absorption and chaos

Author(s): Ka S. Wu, Ori Henderson-Sapir, Peter J. Veitch, Murray Hamilton, Jesper Munch, and David J. OttawayTm:YAlO3 lasers suffer from self-pulsing. A four-level rate equation analysis suggested th … - Narrowband biphotons with polarization-frequency-coupled entanglement

Author(s): Chi Shu, Xianxin Guo, Peng Chen, M. M. T. Loy, and Shengwang DuWe demonstrate the generation of narrowband biphotons with polarization-frequency-coupled entanglement from spontaneous four-w … - Accelerated rotation with orbital angular momentum modes

Author(s): Christian Schulze, Filippus S. Roux, Angela Dudley, Ronald Rop, Michael Duparré, and Andrew ForbesA combined theoretical and experimental study shows that it is possible to prepare an optic … - Light shifts in a pulsed cold-atom coherent-population-trapping clock

Author(s): E. Blanshan, S. M. Rochester, E. A. Donley, and J. KitchingField-grade atomic clocks capable of primary standard performance in compact physics packages would be of significant value in app … - Nonmonotonic increase in laser-driven THz emissions through multiple ionization events

Author(s): A. Debayle, P. González de Alaiza Martínez, L. Gremillet, and L. BergéHighly charged states created through multiple ionization of gases are shown to enhance terahertz (THz) generation by i … - Quantum non-Markovianity based on the Fisher-information matrix

Author(s): Hongting Song, Shunlong Luo, and Yan HongWith the development of quantum-information theory, there has been a flurry of investigations of quantum non-Markovian dynamics, and several signifi … - Correction to the geometric phase by structured environments: The onset of non-Markovian effects

Author(s): Fernando C. Lombardo and Paula I. VillarWe study the geometric phase of a two-level system under the presence of a structured environment, particularly analyzing its correction with the ohm … - Multilevel superconducting circuits as two-qubit systems: Operations, state preparation, and entropic inequalities

Author(s): E. O. Kiktenko, A. K. Fedorov, O. V. Man'ko, and V. I. Man'koWe theoretically study operations with a four-level superconducting circuit as a two-qubit system. Using a mapping on … - Detecting k-nonseparability via quantum Fisher information

Author(s): Yan Hong, Shunlong Luo, and Hongting SongThe k-nonseparability is a kind of multipartite quantum correlation which can be used to characterize some aspects of multipartite entanglement. In … - Microwave spectroscopy of the calcium 4snf→4s(n+1)d,4sng,4snh,4sni, and 4snk transitions

Author(s): J. Nunkaew and T. F. GallagherWe observe the microwave transitions of calcium from the 4snf states to the 4s(n+1)d,4sng,4snh,4sni, and 4snk states for 18≤n≤23 using delayed field ionization … - Theoretical study of ThF^{+} in the search for T,P-violation effects: Effective state of a Th atom in ThF^{+} and ThO compounds

Author(s): L. V. Skripnikov and A. V. TitovWe report the results of a theoretical investigation of the electronic structure of the ThF+ cation, which is one of the most interesting systems to search f … - Neutralization and wake effects on the Coulomb explosion of swift H_{2}^{+} ions traversing thin films

Author(s): L. F. S. Rosa, P. L. Grande, J. F. Dias, R. C. Fadanelli, and M. VosThe Coulomb explosion of small cluster beams can be used to measure the dwell time of fragments traversing amorphous film … - Simulation of wave-function microscopy images of Stark resonances

Author(s): L. B. Zhao, D. H. Xiao, and I. I. FabrikantWave-function microscopy images for Stark resonance states of H atoms are simulated using the quantum-mechanical formalism developed previously. S …