Measuring distances in Hilbert space by many-particle interference Author(s): Karol Bartkiewicz, Vojtěch Trávníček, and Karel LemrThe measures of distances between points in a Hilbert space are one of the basic theoretical concepts used to characterize properties of …
Schwinger effect of a relativistic boson entangled with a qubit Author(s): Yujie Li, Qingqing Mao, and Yu ShiWe use the concept of quantum entanglement to analyze the Schwinger effect on an entangled state of a qubit and a boson mode coupled with the electric fiel …
Atom-only descriptions of the driven-dissipative Dicke model Author(s): François Damanet, Andrew J. Daley, and Jonathan KeelingWe investigate how to describe the dissipative spin dynamics of the driven-dissipative Dicke model, describing $N$ two-level atoms cou …
Teleportation-assisted optical controlled-sign gates Author(s): Fabian Ewert and Peter van LoockReliable entangling gates for qubits encoded in single-photon states represent a major challenge on the road to scalable quantum computing architectures base …
Methods to estimate entanglement in teleportation experiments Author(s): Ivan Šupić, Paul Skrzypczyk, and Daniel CavalcantiQuantum state teleportation is a protocol where a shared entangled state is used as a quantum channel to transmit quantum information betwe …
Evaluating analytic gradients on quantum hardware Author(s): Maria Schuld, Ville Bergholm, Christian Gogolin, Josh Izaac, and Nathan KilloranAn important application for near-term quantum computing lies in optimization tasks, with applications rangin …
Nonclassical states in strongly correlated bosonic ring ladders Author(s): Nicolas Victorin, Tobias Haug, Leong-Chuan Kwek, Luigi Amico, and Anna MinguzziWe study the ground state of a bosonic ring ladder under a gauge flux in the vortex phase, corresponding to th …
Analytic theory of an edge mode between impedance surfaces Author(s): Xianghong Kong, Dia'aaldin J. Bisharat, Gaobiao Xiao, and Daniel F. SievenpiperAn eigenmode analysis is presented of the electromagnetic field which occurs between two complementary su …
Randomized benchmarking under different gate sets Author(s): Kristine Boone, Arnaud Carignan-Dugas, Joel J. Wallman, and Joseph EmersonWe provide a comprehensive analysis of the differences between two important standards for randomized benchmarking …
Classifying quantum data by dissipation Author(s): Jeffrey Marshall, Lorenzo Campos Venuti, and Paolo ZanardiWe investigate a general class of dissipative quantum circuit capable of computing arbitrary conjunctive normal form (CNF) Boolean …
Engineering of heralded narrowband color-entangled states Author(s): A. Zavatta, M. Artoni, and G. La RoccaThe efficient generation of entanglement is an essential requirement for quantum communications; however, long distances can only be achieved by utiliz …
Three-state Landau-Zener model in the presence of dissipation Author(s): Benedetto MilitelloA population transfer based on adiabatic evolutions in a three-state system undergoing an avoided crossing is considered. The efficiency of the process is analyzed in con …
Electric-field-induced helium-helium resonances Author(s): Q. Guan and D. BlumeThe tunability of the helium-helium interaction through an external electric field is investigated. For a static external field, electric-field-induced resonances and as …
Attoclock with counter-rotating bicircular laser fields Author(s): Nicolas Eicke and Manfred LeinThe attoclock technique which maps the emission time of a photoelectron to its detection angle is an important tool in strong-field physics. Previously, it was …
Dynamical symmetries hidden in the form of the potential Author(s): Markus Suta and Thomas MannelA general approach to conserved physical quantities originating from dynamical symmetries is presented for quantum-mechanical systems. It is illustrated that a …
Left-handed superlattice metamaterials for circuit QED Author(s): A. Messinger, B. G. Taketani, and F. K. WilhelmQuantum simulation is a promising field where a controllable system is used to mimic another system of interest, whose properties one wants to …
Interaction spectroscopy of a two-component Mott insulator Author(s): Jesse Amato-Grill, Niklas Jepsen, Ivana Dimitrova, William Lunden, and Wolfgang KetterleUltracold atoms offer a controlled platform for investigating quantum magnetism; however, stepping in …
Polaron in a $p+ip$ Fermi topological superfluid Author(s): Fang Qin (覃昉), Xiaoling Cui, and Wei YiWe study polaron excitations induced by an impurity interacting with a two-dimensional $p+ip$ Fermi superfluid. As the Fermi-Fermi pairing interaction …
Definition of polaritonic fluctuations in natural hyperbolic media Author(s): Sean Molesky and Zubin JacobThe discovery of photonic hyperbolic dispersion surfaces in certain van der Waals bonded solids, such as hexagonal boron nitride and bismuth selenide (a topologi …
Theory of Bose condensation of light via laser cooling of atoms Author(s): Chiao-Hsuan Wang, M. J. Gullans, J. V. Porto, William D. Phillips, and Jacob M. TaylorA scheme to achieve Bose-Einstein condensation of photons through the Doppler cooling of an atomic ense …
Discrete-time quantum walks as fermions of lattice gauge theory Author(s): Pablo Arnault, Armando Pérez, Pablo Arrighi, and Terry FarrellyIt is shown that discrete-time quantum walks can be used to digitize, i.e., to time discretize fermionic models of continuous- …
Three-level Landau-Zener dynamics Author(s): Y. B. Band and Y. AvishaiWe compute Landau-Zener probabilities for three-level systems with a linear sweep of the uncoupled energy levels of the $3×3$ Hamiltonian matrix $H(t)$. Two symmetr …
Dirac quantum walks on triangular and honeycomb lattices Author(s): Gareth Jay, Fabrice Debbasch, and J. B. WangIn this paper, we present a detailed study on discrete-time Dirac quantum walks (DQWs) on triangular and honeycomb lattices. At the continuous li …
Spin transport in a long-range-interacting spin chain Author(s): Benedikt Kloss and Yevgeny Bar LevWe numerically study spin transport and spin-density profiles after a local quench in a clean one-dimensional spin chain with long-range interactions, deca …
Hypothesis testing and entropies of quantum channels Author(s): Xiao YuanHypothesis testing is an important task in mathematics and physics. Hypothesis testing of two random variables is related to the Kullback-Leibler divergence of the two correspondin …
Entropy production in the quantum walk Author(s): Andrés Vallejo, Alejandro Romanelli, Raúl Donangelo, and Renato PortugalWe explore the notion of generated entropy in open quantum systems. We focus on the study of the discrete-time quantu …
Connecting velocity and entanglement in quantum walks Author(s): Alexandre C. Orthey, Jr. and Edgard P. M. AmorimWe investigate the relation between transport properties and entanglement between the internal (spin) and external (position) degrees of free …
Tunable single-photon quantum router Author(s): M. Ahumada, P. A. Orellana, F. Domínguez-Adame, and A. V. MalyshevWe propose an efficient single-photon router comprising two resonator waveguide channels coupled by several sequential cavi …
Multipartite entanglement swapping and mechanical cluster states Author(s): Carlo Ottaviani, Cosmo Lupo, Alessandro Ferraro, Mauro Paternostro, and Stefano PirandolaWe present a protocol for generating multipartite quantum correlations across a quantum network with …
Spontaneous topological pumping in non-Hermitian systems Author(s): C. YuceWe introduce modulational instability in non-Hermitian systems to study state conversion of topological edge states. We show that state conversion in non-Hermitian systems leads to t …
Quantum speedup at zero temperature via coherent catalysis Author(s): Gabriel A. DurkinIt is known that secondary nonstoquastic drivers may offer speedups or catalysis in some models of adiabatic quantum computation accompanying the more typical transverse fi …
Light-force-induced shift in laser spectroscopy of atomic helium Author(s): X. Zheng (郑昕), Y. R. Sun (孙羽), J.-J. Chen (陈娇娇), J.-L. Wen (温金录), and S.-M. Hu (胡水明)A laser-power-dependent shift has been observed in various atomic beam spectroscopy measurements, which w …