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20102026
most citedHybrid quantum circuits: Superconducting circuits interacting with other quantum systems

1.6k citations

Showing 2020 · quant-phShow all

27 papers · 2 filters

quant-ph2020★ 9 cited

Self-consistency of optimizing finite-time Carnot engines with the low-dissipation model

Yu-Han Ma, C. P. Sun, Hui Dong

The efficiency at the maximum power (EMP) for finite-time Carnot engines established with the low-dissipation model, relies significantly on the assumption of the inverse proportio…

quant-ph2020★ 114 cited

Stark many-body localization on a superconducting quantum processor

Qiujiang Guo, Chen Cheng, Hekang Li +9

Quantum emulators, owing to their large degree of tunability and control, allow the observation of fine aspects of closed quantum many-body systems, as either the regime where ther…

quant-ph2020★ 69 cited

Perfect Transfer of enhanced entanglement and asymmetric steering in a cavity magnomechanical system

Yao-Tong Chen, Lei Du, Yan Zhang +1

We propose a hybrid cavity magnomechanical system to realize and transfer the bipartite entanglements and Einstein-Podolsky-Rosen (EPR) steerings between magnons, photons, and phon…

quant-ph2020★ 42 cited

Dynamical symmetries of periodically-driven quantum systems and their spectroscopic signatures

Georg Engelhardt, Jianshu Cao

Spatial symmetries of quantum systems leads to important effects in spectroscopy, such as selection rules and dark states. Motivated by the increasing strength of light-matter inte…

quant-ph2020★ 70 cited

Simulating Exceptional Non-Hermitian Metals with Single-Photon Interferometry

Kunkun Wang, Lei Xiao, Jan Carl Budich +2

We experimentally simulate in a photonic setting non-Hermitian (NH) metals characterized by the topological properties of their nodal band structures. Implementing nonunitary time…

quant-ph2020★ 216 cited

Observation of non-Bloch parity-time symmetry and exceptional points

Lei Xiao, Tianshu Deng, Kunkun Wang +3

Parity-time (PT)-symmetric Hamiltonians have widespread significance in non-Hermitian physics. A PT-symmetric Hamiltonian can exhibit distinct phases with either real or complex ei…

quant-ph2020★ 6 cited

Universality class and exact phase boundary in the superradiant phase transition

Wei-Feng Zhuang, Bin Geng, Hong-Gang Luo +2

The Dicke model and Rabi model can undergo phase transitions from the normal phase to the superradiant phase at the same boundary, which can be accurately determined using some app…

quant-ph2020★ 1 cited

The hierarchy recurrences in local relaxation

Sheng-Wen Li, C. P. Sun

Inside a closed many-body system undergoing the unitary evolution, a small partition of the whole system exhibits a local relaxation. If the total degrees of freedom of the whole s…

quant-ph2020★ 22 cited

Enantio-conversion of chiral mixtures via optical pumping

Chong Ye, Bo Liu, Yu-Yuan Chen +1

Enantio-conversion with the help of electromagnetic fields is an essential issue due to the chirality-dependence of many chemical, biological, and pharmaceutical processes. Here, w…

quant-ph2020★ 25 cited

Photon-Dressed Bloch-Siegert Shift in an Ultrastrongly Coupled Circuit Quantum Electrodynamical System

Shuai-Peng Wang, Guo-Qiang Zhang, Yimin Wang +5

A cavity quantum electrodynamical (QED) system beyond the strong-coupling regime is expected to exhibit intriguing quantum phenomena. Here we report a direct measurement of the pho…

quant-ph2020★ 10 cited

Anomalies of weight-based coherence measure and mixed maximally coherent states

Yao Yao, Dong Li, C. P. Sun

As an analogy of best separable approximation (BSA) in the framework of entanglement theory, here we concentrate on the notion of best incoherent approximation, with application to…

quant-ph2020★ 40 cited

Non-Hermitian Kibble-Zurek mechanism with tunable complexity in single-photon interferometry

Peng Xue, Lei Xiao, Dengke Qu +7

Non-Hermitian descriptions of quantum matter have seen impressive progress recently, with major advances in understanding central aspects such as their topological properties or th…

quant-ph2020★ 14 cited

Experimentally Accessible Quantum Phase Transition in a non-Hermitian Tavis-Cummings Model Engineered with Two Drive Fields

Guo-Qiang Zhang, Zhen Chen, J. Q. You

We study the quantum phase transition (QPT) in a non-Hermitian Tavis-Cummings (TC) model of experimentally accessible parameters, which is engineered with two drive fields applied…

quant-ph2020★ 8 cited

Simulating finite-time quantum isothermal processes with generic superconducting quantum circuit

Jin-Fu Chen, Ying Li, Hui Dong

The finite-time isothermal process is fundamental in quantum thermodynamics yet complicated with combination of changing control parameters and the interaction with the thermal bat…

quant-ph2020

Characterizing multipartite entanglement by violation of CHSH inequalities

Ming Li, Huihui Qin, Chengjie Zhang +3

Entanglement of high-dimensional and multipartite quantum systems offer promising perspectives in quantum information processing. However, the characterization and measure of such…

quant-ph2020★ 18 cited

Resilience of the superradiant phase against effects in the quantum Rabi dimer

Yimin Wang, Maoxin Liu, Wen-Long You +3

We explore the quantum criticality of a two-site model combining quantum Rabi models with hopping interaction. Through a combination of analytical and numerical approaches, we find…

quant-ph2020★ 21 cited

Experimental realization of a quantum image classifier via tensor-network-based machine learning

Kunkun Wang, Lei Xiao, Wei Yi +2

Quantum machine learning aspires to overcome intractability that currently limits its applicability to practical problems. However, quantum machine learning itself is limited by lo…

quant-ph2020★ 36 cited

Sensing individual nuclear spins with a single rare-earth electron spin

Thomas Kornher, Da-Wu Xiao, Kangwei Xia +4

Rare-earth related electron spins in crystalline hosts are unique material systems, as they can potentially provide a direct interface between telecom band photons and long-lived s…

quant-ph2020★ 9 cited

Non-Markovian effect on quantum optical metrology under dissipative environment

Kai Bai, Hong-Gang Luo, Wenxian Zhang +1

Quantum metrology utilizes quantum effects to reach higher precision measurements of physical quantities compared with their classical counterparts. However the ubiquitous decohere…

quant-ph2020★ 8 cited

Magnetically Induced Optical Transparency With Ultra-Narrow Spectrum

Guohui Dong, Dazhi Xu, Peng Zhang

Magnetically induced optical transparency (MIOT) is a technique to realize the narrow transmission spectrum in a cavity quantum electric dynamics (cavity QED) system, which is demo…

quant-ph2020★ 46 cited

Operational definition of a quantum speed limit

Yanyan Shao, Bo Liu, Mao Zhang +2

The quantum speed limit is a fundamental concept in quantum mechanics, which aims at finding the minimum time scale or the maximum dynamical speed for some fixed targets. In a larg…

quant-ph2020★ 45 cited

Dynamics of Quantum Coherence and Quantum Fisher Information After Sudden Quench

R. Jafari, Alireza Akbari

The dynamics of relative entropy and -norm of coherence, as well as, the Wigner-Yanase-skew and quantum Fisher information are studied for a time-dependent coupled XY spin c…

quant-ph2020★ 21 cited

Experimental demonstration of one-sided device-independent self-testing of any pure two-qubit entangled state

Zhihao Bian, A. S. Majumdar, C. Jebaratnam +5

We demonstrate one-sided device-independent self-testing of any pure entangled two-qubit state based on a fine-grained steering inequality. The maximum violation of a fine-grained…

quant-ph2020★ 1 cited

Quantifying Algebraic Asymmetry of Hamiltonian Systems

Hui-Hui Qin, Shao-Ming Fei, Chang-Pu Sun

The symmetries play important roles in physical systems. We study the symmetries of a Hamiltonian system by investigating the asymmetry of the Hamiltonian with respect to certain a…