- Fisher information versus signal-to-noise ratio for a split detector

Author(s): George C. Knee and William J. MunroWe study the problem of estimating the magnitude of a Gaussian beam displacement using a two-pixel or “split” detector. We calculate the maximum likelihoo … - Adiabatic topological quantum computing

Author(s): Chris Cesare, Andrew J. Landahl, Dave Bacon, Steven T. Flammia, and Alice NeelsTopological quantum computing promises error-resistant quantum computation without active error correction. Ho … - Deterministic quantum computation with one photonic qubit

Author(s): M. Hor-Meyll, D. S. Tasca, S. P. Walborn, P. H. Souto Ribeiro, M. M. Santos, and E. I. DuzzioniWe show that deterministic quantum computing with one qubit (DQC1) can be experimentally imple … - Fighting noise with noise in realistic quantum teleportation

Author(s): Raphael Fortes and Gustavo RigolinWe investigate how the efficiency of the quantum teleportation protocol is affected when the qubits involved in the protocol are subjected to noise or deco … - Auger resonant-Raman decay after Xe L-edge photoexcitation

Author(s): R. K. Kushawaha, K. Jänkälä, T. Marchenko, G. Goldsztejn, R. Guillemin, L. Journel, D. Céolin, J.-P. Rueff, A. F. Lago, R. Püttner, M. N. Piancastelli, and M. SimonWe have investigated reso … - Dynamical spin-density waves in a spin-orbit-coupled Bose-Einstein condensate

Author(s): Yan Li, Chunlei Qu, Yongsheng Zhang, and Chuanwei ZhangSynthetic spin-orbit (SO) coupling, an important ingredient for quantum simulation of many exotic condensed matter physics, has recent … - Scattering of two-dimensional dark solitons by a single quantum vortex in a Bose-Einstein condensate

Author(s): Lev A. Smirnov and Alexander I. SmirnovWe study the process of scattering of two-dimensional dark solitons, and their vortex-antivortex pairs as a specific case, by a single quantum vortex … - Two-dimensional bright solitons in dipolar Bose-Einstein condensates with tilted dipoles

Author(s): Meghana Raghunandan, Chinmayee Mishra, Kazimierz Łakomy, Paolo Pedri, Luis Santos, and Rejish NathThe effect of dipolar orientation with respect to the soliton plane on the physics of two-d … - Isothermal compressibility determination across Bose-Einstein condensation

Author(s): F. J. Poveda-Cuevas, P. C. M. Castilho, E. D. Mercado-Gutierrez, A. R. Fritsch, S. R. Muniz, E. Lucioni, G. Roati, and V. S. BagnatoWe apply the global thermodynamic variables approach to e … - Split and overlapped binary solitons in optical lattices

Author(s): Golam Ali Sekh, Francesco V. Pepe, Paolo Facchi, Saverio Pascazio, and Mario SalernoWe analyze the energetic and dynamical properties of bright-bright (BB) soliton pairs in a binary mixture … - Nondegenerate multimode optomechanics

Author(s): L. F. Buchmann and D. M. Stamper-KurnWe theoretically investigate interactions between nondegenerate mechanical oscillators mediated by a time-dependent cavity field. We obtain a reduced ma … - Mechanical PT symmetry in coupled optomechanical systems

Author(s): Xun-Wei Xu, Yu-xi Liu, Chang-Pu Sun, and Yong LiWe propose to realize mechanical parity-time (PT) symmetry in two coupled optomechanical systems. To provide gain to one mechanical resonator … - Comment on “Deducing radiation pressure on a submerged mirror from the Doppler shift”

Author(s): V. P. Torchigin and A. V. TorchiginIn this Comment, we show that the author's conclusion in Phys. Rev. A 85, 023807 (2012) that “the momentum transferred to a submerged mirror upon ref … - Reply to “Comment on `Deducing radiation pressure on a submerged mirror from the Doppler shift' ”

Author(s): Masud Mansuripur[Phys. Rev. A 92, 017804] Published Fri Jul 31, 2015 - Wigner representation of the rotational dynamics of rigid tops

Author(s): Dmitry V. Zhdanov and Tamar SeidemanWe propose a methodology to design Wigner representations in phase spaces with nontrivial topology having evolution equations with desired mathematical p … - Simulating the Haldane phase in trapped-ion spins using optical fields

Author(s): I. Cohen, P. Richerme, Z.-X. Gong, C. Monroe, and A. RetzkerWe propose to experimentally explore the Haldane phase in spin-one XXZ antiferromagnetic chains using trapped ions. We show how t … - Progress towards a unified approach to entanglement distribution

Author(s): Alexander Streltsov, Remigiusz Augusiak, Maciej Demianowicz, and Maciej LewensteinEntanglement distribution is key to the success of secure communication schemes based on quantum mechanics, … - Theoretical study of the mechanism of H_{2} O^{+} dissociative recombination

Author(s): Sifiso M. Nkambule, Åsa Larson, Samantha Fonseca dos Santos, and Ann E. OrelBy combining electronic structure and scattering calculations, quasidiabatic potential energy surfaces of both bo … - Intrinsic-to-extrinsic supersolid transition and fractionally modulated states in a lattice ultracold Bose gas with long-range interaction

Author(s): C.-H. Hsueh, Y.-C. Tsai, and W. C. WuWe investigate the intrinsic-to-extrinsic supersolid (SS) transition in a lattice ultracold Bose gas with strong long-range interaction. When changing t … - Entangling power and operator entanglement of nonunitary quantum evolutions

Author(s): Fan-Zhen Kong, Jun-Long Zhao, Ming Yang, and Zhuo-Liang CaoWe propose a method to calculate the operator entanglement and entangling power of a noisy nonunitary operation in terms of linear … - Exploring quantum phases by driven dissipation

Author(s): Nicolai Lang and Hans Peter BüchlerDephasing and decay are the intrinsic dissipative processes prevalent in any open quantum system and the dominant mechanisms for the loss of coherence and … - Violations of Bell inequalities from random pure states

Author(s): Max R. Atkin and Stefan ZohrenWe consider the expected violations of Bell inequalities from random pure states. More precisely, we focus on a slightly generalized version of the Collins-Gis … - Nonlocality of orthogonal product states

Author(s): Zhi-Chao Zhang, Fei Gao, Su-Juan Qin, Ying-Hui Yang, and Qiao-Yan WenIn this paper, we mainly study the local indistinguishability of mutually orthogonal product basis quantum states in d⊗d … - Measurement-device-independent quantum communication with an untrusted source

Author(s): Feihu XuMeasurement-device-independent quantum key distribution (MDI-QKD) can provide enhanced security compared to traditional QKD, and it constitutes an important framework for a quantum … - Energy- and angle-resolved ionization of H_{2} ^{+} interacting with xuv subfemtosecond laser pulses

Author(s): R. E. F. Silva, F. Catoire, P. Rivière, T. Niederhausen, H. Bachau, and F. MartínWe present an extension of the resolvent operator method to extract fully differential ionization probabilit … - Publisher's Note: Enhancing quantum entanglement and quantum teleportation for two-mode squeezed vacuum state by local quantum-optical catalysis [Phys. Rev. A 92, 012318 (2015)]

Author(s): Xue-xiang Xu[Phys. Rev. A 92, 019903] Published Wed Jul 29, 2015 - Erratum: Synthetic magnetic fluxes and topological order in one-dimensional spin systems [Phys. Rev. A 91, 063612 (2015)]

Author(s): Tobias Graß, Christine Muschik, Alessio Celi, Ravindra W. Chhajlany, and Maciej Lewenstein[Phys. Rev. A 92, 019904] Published Wed Jul 29, 2015 - Entangled quantum probes for dynamical environmental noise

Author(s): Matteo A. C. Rossi and Matteo G. A. ParisWe address the use of entangled qubits as quantum probes to characterize the noise induced by complex environments. In particular, we show that a jo … - Progress toward high-Q perfect absorption: A Fano antilaser

Author(s): Sunkyu Yu, Xianji Piao, Jiho Hong, and Namkyoo ParkHere we propose a route to the high-Q perfect absorption of light by introducing the concept of a Fano antilaser. Based on the drastic spe … - Einstein-Podolsky-Rosen–entangled motion of two massive objects

Author(s): Roman SchnabelA proposed interferometry experiment could test quantum gravity theories by entangling two mirrors weighing as much as apples.[Phys. Rev. A 92, 012126] Published Tue Jul 28, 2 … - Repulsive Casimir-Polder potential by a negative reflecting surface

Author(s): Qi-Zhang YuanWe present a scheme to generate an all-range long repulsive Casimir-Polder potential between a perfect negative reflecting surface and a ground-state atom. The repulsive potent … - Harmonic and subharmonic association of universal dimers in a thermal gas

Author(s): Abhishek Mohapatra and Eric BraatenIn a gas of ultracold atoms whose scattering length is controlled by a magnetic Feshbach resonance, atoms can be associated into universal dimers by an os … - Photon-correlation measurements of atomic-cloud temperature using an optical nanofiber

Author(s): J. A. Grover, P. Solano, L. A. Orozco, and S. L. RolstonA method to measure the temperature of a cold atomic cloud is developed by relating atoms’ motion to fluorescence photons emitted int … - Thermalization kinetics of light: From laser dynamics to equilibrium condensation of photons

Author(s): Julian Schmitt, Tobias Damm, David Dung, Frank Vewinger, Jan Klaers, and Martin WeitzWe report a time-resolved study of the thermalization dynamics and the lasing to photon Bose-Einstein co … - Suppressing technical noise in weak measurements by entanglement

Author(s): Shengshi Pang and Todd A. BrunPostselected weak measurement has aroused broad interest for its distinctive ability to amplify small physical quantities. However, the low postselection effic … - Semiclassical quantization for a bosonic atom-molecule conversion system

Author(s): Eva-Maria Graefe, Maria Graney, and Alexander RushWe consider a simple quantum model of atom-molecule conversion where bosonic atoms can combine into diatomic molecules and vice versa. The … - Quantum-mechanical diffraction theory of light from a small hole: Extinction-theorem approach

Author(s): Jesper Jung and Ole KellerIn a recent paper [Phys. Rev. A 90, 043830 (2014)] it was shown that the so-called aperture response tensor is the central concept in the microscopic quantum theor … - Muonic bound systems, virtual particles, and proton radius

Author(s): U. D. JentschuraThe proton radius puzzle questions the self-consistency of theory and experiment in light muonic and electronic bound systems. Here we summarize the current status of virtua … - Adiabatic elimination of Gaussian subsystems from quantum dynamics under continuous measurement

Author(s): Ondřej Černotík, Denis V. Vasilyev, and Klemens HammererAn ever broader range of physical platforms provides the possibility to study and engineer quantum dynamics under continuous measurem … - Quantum learning robust against noise

Author(s): Andrew W. Cross, Graeme Smith, and John A. SmolinNoise is often regarded as anathema to quantum computation, but in some settings it can be an unlikely ally. We consider the problem of lear … - Hierarchy of bounds on accessible information and informational power

Author(s): Michele Dall'ArnoQuantum theory imposes fundamental limitations on the amount of information that can be carried by any quantum system. On the one hand, the Holevo bound rules out the … - Entanglement swapping with quantum-memory-compatible photons

Author(s): J. Jin, M. Grimau Puigibert, L. Giner, J. A. Slater, M. R. E. Lamont, V. B. Verma, M. D. Shaw, F. Marsili, S. W. Nam, D. Oblak, and W. TittelWe report entanglement swapping with time-bin en … - Superconducting circuit probe for analog quantum simulators

Author(s): Liang-Hui Du, J. Q. You, and Lin TianAnalog quantum simulators can be used to study quantum correlation in novel many-body systems by emulating the Hamiltonian of these systems. One essenti … - Method for detecting the isomeric state I=(3/2)^{+} in ^{229} Th with laser-induced fluorescence

Author(s): J. Dembczyński, M. Elantkowska, and J. RuczkowskiThere are different predictions regarding the position of the isomeric state of ^{229m}Th. There is some question as to whether it even exis … - Nonuniqueness of algebraic first-order density-matrix functionals

Author(s): Jian Wang and Peter J. KnowlesBy explicit construction of counterexamples having the same eigenvalue spectrum of one-matrix, but different two-matrix, we show that density-matrix functional … - TaN molecule as a candidate for the search for a T,P-violating nuclear magnetic quadrupole moment

Author(s): L. V. Skripnikov, A. N. Petrov, N. S. Mosyagin, A. V. Titov, and V. V. FlambaumIt is demonstrated that the TaN molecule is the best candidate to search for a T,P-violating nuclear magnetic … - Infrared light on molecule-molecule and molecule-surface collisions

Author(s): H. Tran, J. Vander Auwera, X. Landsheere, N. H. Ngo, E. Pangui, S. B. Morales, H. El Hamzaoui, B. Capoen, M. Bouazaoui, C. Boulet, and J.-M. HartmannBy analyzing measured infrared absorptio … - Phase differences in the photoemission from krypton in the fine-structure-split ionization channels ^{2} P _{3/2} and ^{2} P _{1/2}

Author(s): M. Baggash and H. RottkeUsing the reconstruction of attosecond beating by interference of two-photon transitions (RABBITT) technique, a nonzero phase difference is observed in the two-photo … - Localizing spin dynamics in a spin-1 Bose-Einstein condensate via magnetic pulses

Author(s): Huanbin Li, Zhengguo Pu, M. S. Chapman, and Wenxian ZhangSpin-exchange interaction between atoms in a spin-1 Bose-Einstein condensate causes atomic spin evolving periodically under the sing … - Few-fermion systems in one dimension: Ground- and excited-state energies and contacts

Author(s): L. Rammelmüller, W. J. Porter, A. C. Loheac, and J. E. DrutUsing the lattice Monte Carlo method, we compute the energy and Tan's contact in the ground state as well as the first excite … - Simulating and exploring Weyl semimetal physics with cold atoms in a two-dimensional optical lattice

Author(s): Dan-Wei Zhang, Shi-Liang Zhu, and Z. D. WangWe propose a scheme to simulate and explore Weyl semimetal physics with ultracold fermionic atoms in a two-dimensional square optical lattice sub … - Bright solitons in a two-dimensional spin-orbit-coupled dipolar Bose-Einstein condensate

Author(s): Yong Xu, Yongping Zhang, and Chuanwei ZhangWe study a two-dimensional spin-orbit-coupled dipolar Bose-Einstein condensate with repulsive contact interactions by both the variational method … - ω−k_{x} Fano line shape in photonic crystal slabs

Author(s): Dmitry A. Bykov and Leonid L. DoskolovichWe study the resonant properties of photonic crystal slabs theoretically. An ω−k_{x} Fano line shape that approximates the transmission (reflection) … - Population inversion in two-level systems possessing permanent dipoles

Author(s): Mihai Macovei, Mayank Mishra, and Christoph H. KeitelBare-state population inversion is demonstrated in a two-level system with all dipole matrix elements nonzero. A laser field is resonant … - Steady-state ab initio laser theory for fully or nearly degenerate cavity modes

Author(s): Stephan Burkhardt, Matthias Liertzer, Dmitry O. Krimer, and Stefan RotterWe investigate the range of validity of the recently developed steady-state ab initio laser theory (SALT). While ver … - Synchronous-asynchronous laser mode-locking transition

Author(s): Shang-Ying Wu, Wei-Wei Hsiang, and Yinchieh LaiSynchronous-asynchronous mode-locking transition in a hybrid active and passive mode-locked laser is investigated theoretically. Three distinc … - Enhanced harmonic generation and carrier-envelope phase-dependent effects in cavity quantum electrodynamics

Author(s): Jiahua Li, Rong Yu, Chunling Ding, Duo Zhang, and Ying WuA lot of experimental and theoretical studies of a system in cavity quantum electrodynamics (cavity QED), which consists of two spat … - Dynamic dipole polarizabilities for the low-lying triplet states of helium

Author(s): Yong-Hui Zhang, Li-Yan Tang, Xian-Zhou Zhang, and Ting-Yun ShiThe dynamic dipole polarizabilities for the four lowest triplet states (2^{3}S, 3^{3}S, 2^{3}P, and 3^{3}P) of helium are calcu … - Polarizabilities of the ^{87} Sr clock transition

Author(s): C. Shi, J.-L. Robyr, U. Eismann, M. Zawada, L. Lorini, R. Le Targat, and J. LodewyckIn this paper, we propose an in-depth review of the vector and tensor polarizabilities of the two energy … - All-optical measurement of Rydberg-state lifetimes

Author(s): Markus Mack, Jens Grimmel, Florian Karlewski, Lőrinc Sárkány, Helge Hattermann, and József FortághWe have developed an all-optical method for measuring the lifetimes of nS and nD Rydberg st … - Linear interpolation method in ensemble Kohn-Sham and range-separated density-functional approximations for excited states

Author(s): Bruno Senjean, Stefan Knecht, Hans Jørgen Aa. Jensen, and Emmanuel FromagerGross-Oliveira-Kohn density-functional theory (GOK-DFT) for ensembles is, in principle, very attractive but has be … - Analysis of electron trajectories with two-color strong-field ionization

Author(s): Jost Henkel and Manfred LeinTwo-color ionization of atoms with a strong 800-nm fundamental component and a weak 400-nm component with perpendicular polarization gives detailed insight into … - Laser-assisted inelastic scattering of electrons by helium atoms

Author(s): H. Agueny, A. Makhoute, A. Dubois, I. Ajana, and G. RahaliThe differential cross section for electron-impact excitation of helium atoms in the presence of a linearly polarized laser field i … - Heralded W-state preparation using laser-designed superatoms

Author(s): Martin GärttnerWe propose a scheme for preparing an ensemble of atoms in a maximally entangled W state by exploiting the Rydberg blockade effect. The success of our protocol is indicated by … - Modified atomic decay rate near absorptive scatterers at finite temperature

Author(s): L. G. Suttorp and A. J. van WonderenThe change in the decay rate of an excited atom that is brought about by extinction and thermal-radiation effects in a nearby dielectric medium is determ … - Thermodynamics of trajectories of a quantum harmonic oscillator coupled to N baths

Author(s): Simon Pigeon, Lorenzo Fusco, André Xuereb, Gabriele De Chiara, and Mauro PaternostroWe undertake a thorough analysis of the thermodynamics of the trajectories followed by a quantum harmonic … - Weak values in continuous weak measurements of qubits

Author(s): Lupei Qin, Pengfei Liang, and Xin-Qi LiFor continuous weak measurements of qubits, we obtain exact expressions for weak values (WVs) from the postselection restricted average of measurement … - Entanglement evolution of twisted photons in strong atmospheric turbulence

Author(s): Filippus S. Roux, Thomas Wellens, and Vyacheslav N. ShatokhinConsidering the evolution of the quantum state of a pair of entangled photons in a turbulent atmosphere and using the quadratic … - Photoproduction of N_{2} ^{2+} from threshold to 400 eV

Author(s): T. Hartman and R. WehlitzWe have measured the relative probability for the production of N_{2}^{2+} using monochromatized synchrotron radiation in the range of 38 to 400 eV. We find the ene … - Generating, dragging, and releasing dark solitons in elongated Bose-Einstein condensates

Author(s): I. Hans, J. Stockhofe, and P. SchmelcherWe theoretically analyze quasi-one-dimensional Bose-Einstein condensates under the influence of a harmonic trap and a narrow potential defect that mo … - Many-body formalism for fermions: Enforcing the Pauli principle on paper

Author(s): D. K. WatsonConfined quantum systems involving N identical interacting fermions are found in many areas of physics, including condensed matter, atomic, nuclear, and chemical physics. In a p … - Inverse Vernier effect in coupled lasers

Author(s): Li Ge and Hakan E. TüreciIn this report we study the Vernier effect in coupled laser systems consisting of two cavities. We show that depending on the nature of their coupling, not only can … - Predicting the evolutionary dynamic behavior of a laser with injected signal using Lyapunov exponents

Author(s): D. K. Bandy, J. R. Hall, and M. E. DenkerWe show that the role of the Lyapunov exponents can be extended beyond the customary local instability, such as limit cycle behavior, to include its … - Theory of nanoparticle-induced frequency shifts of whispering-gallery-mode resonances in spheroidal optical resonators

Author(s): L. Deych and V. ShuvayevNanoparticle-induced modifications of the spectrum of whispering-gallery modes (WGMs) of optical spheroidal resonators are studied theoretically. Combining an ab ini … - Duality of quantum coherence and path distinguishability

Author(s): Manabendra Nath Bera, Tabish Qureshi, Mohd Asad Siddiqui, and Arun Kumar PatiWe derive a generalized wave-particle duality relation for arbitrary multipath quantum interference phenomena. B … - Spatial distribution on high-order-harmonic generation of an H_{2} ^{+} molecule in intense laser fields

Author(s): Jun Zhang, Xin-Lei Ge, Tian Wang, Tong-Tong Xu, Jing Guo, and Xue-Shen LiuHigh-order-harmonic generation (HHG) for the H_{2}^{+} molecule in a 3-fs, 800-nm few-cycle Gaussian laser pulse co … - Enhanced trapping of cold ^{6} Li using multiple-sideband cooling in a two-dimensional magneto-optical trap

Author(s): Kai Li, Dongfang Zhang, Tianyou Gao, Shi-Guo Peng, and Kaijun JiangTrapping a large number of ^{6}Li atoms in a simplified experimental setup is a long-term pursuit in the studies of degene … - Effects of nuclear motion on the ionization-induced terahertz radiation of H_{2} ^{+} in intense few-cycle laser pulses

Author(s): Shan Xue, Hongchuan Du, Yue Xia, and Bitao HuWe examine the residual current to investigate the conversion efficiency from the few-cycle laser pulse into the terahertz radiation of H_{2}^{+ … - Second-order response theory of radio-frequency spectroscopy for cold atoms

Author(s): C. Berthod, M. Köhl, and T. GiamarchiWe present a theoretical description of the radio-frequency (rf) spectroscopy of fermionic atomic gases, based on the second-order response theory at fi … - Observation of diffraction cancellation for nonparaxial beams in the scale-free-optics regime

Author(s): F. Di Mei, D. Pierangeli, J. Parravicini, C. Conti, A. J. Agranat, and E. DelReWe report the observation of diffraction cancellation for visible beams with widths from tens of wavelengths d … - Stimulated Brillouin scattering in integrated photonic waveguides: Forces, scattering mechanisms, and coupled-mode analysis

Author(s): C. Wolff, M. J. Steel, B. J. Eggleton, and C. G. PoultonRecent theoretical studies of stimulated Brillouin scattering (SBS) in nanoscale devices have led to intense research effort dedicate … - Near-field speckle-scanning-based x-ray imaging

Author(s): Sebastien Berujon and Eric ZieglerA method capable of accessing the ultra-small-angle x-ray-scattering distribution of a sample from two-dimensional raster scans is developed, which promise … - Coherent effect of vacuum fluctuations on driven atoms

Author(s): M. Donaire and A. LambrechtWe study the coherent effect of the Casimir-Polder interaction on the oscillations of two-photon driven atoms. We find that, for oscillations between two degenera … - Spin separations in the spin Hall effect of light

Author(s): Jin-Li Ren, Bo Wang, Meng-Meng Pan, Yun-Feng Xiao, Qihuang Gong, and Yan LiThe so-called spin Hall effect of light, the transverse splitting of the left circularly polarized and right circu … - Quantum theory of a bandpass Purcell filter for qubit readout

Author(s): Eyob A. Sete, John M. Martinis, and Alexander N. KorotkovThe measurement fidelity of superconducting transmon and Xmon qubits is partially limited by the qubit energy relaxation through the … - Ionization energies along beryllium isoelectronic sequence

Author(s): A. V. Malyshev, A. V. Volotka, D. A. Glazov, I. I. Tupitsyn, V. M. Shabaev, and G. PlunienIonization energies for the ground state of berylliumlike ions with nuclear charge numbers in the r … - Spatial-temporal control of interferences of multiple tunneling photoelectron wave packets

Author(s): Min Li, Ji-Wei Geng, Ming-Ming Liu, Xu Zheng, Liang-You Peng, Qihuang Gong, and Yunquan LiuWe theoretically study the control of the interferences of multiple tunneling photoelectron wave p … - Multiphoton inner-shell ionization of the carbon atom

Author(s): H. F. Rey and H. W. van der HartWe apply time-dependent R-matrix theory to study inner-shell ionization of C atoms in ultrashort high-frequency light fields with a photon energy between 170 … - Population-imbalance instability in a Bose-Hubbard ladder in the presence of a magnetic flux

Author(s): Shun Uchino and Akiyuki TokunoWe consider a two-leg Bose-Hubbard ladder in the presence of a magnetic flux. We make use of Gross-Pitaevskii, Bogoliubov, bosonization, and renormalization gr … - Shrinking cloaks in expanding space-times: The role of coordinates and the meaning of transformations in transformation optics

Author(s): Robert T. Thompson and Mohsen FathiThe fully covariant formulation of transformation optics is used to find the configuration of a cloaking device operating in an expanding universe modeled … - Coherently tracking the covariance matrix of an open quantum system

Author(s): Zibo Miao, Michael R. Hush, and Matthew R. JamesCoherent feedback control of quantum systems has demonstrable advantages over measurement-based control, but so far there has been little wor … - Spontaneous PT-symmetry breaking in non-Hermitian Kitaev and extended Kitaev models

Author(s): Xiaohui Wang, Tingting Liu, Ye Xiong, and Peiqing TongThe spontaneous parity-time (PT) symmetry breaking is discussed in non-Hermitian PT-symmetric Kitaev and extended Kitaev models whose H … - Amplitude control of a quantum state in a non-Hermitian Rice-Mele model driven by an external field

Author(s): S. Lin, X. Z. Zhang, and Z. SongIn the Hermitian regime, the Berry phase is always a real number. It may be imaginary for a non-Hermitian system, which leads to amplitude amplification or a … - Group structures and representations of graph states

Author(s): Jun-Yi Wu, Hermann Kampermann, and Dagmar BrußA special configuration of graph state stabilizers, which contains only Pauli σ_{X} operators, is studied. The vertex sets ξ associated with su … - Ramsauer effect in a one-dimensional quantum walk with multiple defects

Author(s): Ho Tat Lam and Kwok Yip SzetoExperimental observations of quantum walks in one dimension have provided many exciting applications in quantum computing, while recent theoretical investigatio … - Experimental test of robust quantum detection and restoration of a qubit

Author(s): M. Mičuda, I. Straka, M. Miková, M. Dušek, M. Ježek, J. Fiurášek, and R. FilipMacroscopic devices that probe and control elementary quantum systems are subjected to environment-induced deco … - Scattering of twisted relativistic electrons by atoms

Author(s): V. Serbo, I. P. Ivanov, S. Fritzsche, D. Seipt, and A. SurzhykovThe Mott scattering of high-energetic twisted electrons by atoms is investigated within the framework of the first Born appro … - Resonances with natural and unnatural parities in positron-sodium scattering

Author(s): Muhammad Umair and Svante JonsellWe present an investigation of resonances in positron-sodium scattering using the complex scaling method. For the target sodium atoms, the interaction betwe … - Quantum dynamics generated by the two-axis countertwisting Hamiltonian

Author(s): Dariusz Kajtoch and Emilia WitkowskaWe study the quantum dynamics generated by the two-axis countertwisting Hamiltonian from an initial spin coherent state in a spin-1/2 ensemble. A charact … - Rabi lattice models with discrete gauge symmetry: Phase diagram and implementation in trapped-ion quantum simulators

Author(s): Pedro Nevado and Diego PorrasWe study a spin-boson chain that exhibits a local Z_{2} symmetry. We investigate the quantum phase diagram of the model by means of perturbation theory, mean-fi …