540 citations · 1.6k across the 30 of their papers we have counts for
21 papers · 1 filter
From Liouville equation to universal quantum control: A study of generating ultra highly squeezed states
Zhu-yao Jin, J. Q. You, Jun Jing
We find that the seemingly disparate control approaches for classical and quantum continuous-variable systems can be unified via differential manifolds of the ancillary representat…
Enhancing dissipative cat-state generation via nonequilibrium pump fields
Zheng-Yang Zhou, Clemens Gneiting, Wei Qin +2
Cat states, which were initially proposed to manifest macroscopic superpositions, play an outstanding role in fundamental aspects of quantum dynamics. In addition, they have potent…
Spatial Search on Graphs with Multiple Targets using Flip-flop Quantum Walk
Abhijith J., Apoorva Patel
We analyse the eigenvalue and eigenvector structure of the flip-flop quantum walk on regular graphs, explicitly demonstrating how it is quadratically faster than the classical rand…
Non-Markovian quantum interference in multilevel quantum systems: Exact master equation approach
Yusui Chen, J. Q. You, Ting Yu
We study the non-Markovian quantum interference phenomenon of a multi-state atomic system coupled to a bosonic dissipative environment by using the exact master equations derived i…
Characterization of topological states via dual multipartite entanglement
Yu-Ran Zhang, Yu Zeng, Heng Fan +2
We demonstrate that multipartite entanglement is able to characterize one-dimensional symmetry-protected topological order, which is witnessed by the scaling behavior of the quantu…
Bistability of Cavity Magnon Polaritons
Yi-Pu Wang, Guo-Qiang Zhang, Dengke Zhang +3
We report the first observation of the magnon-polariton bistability in a cavity magnonics system consisting of cavity photons strongly interacting with the magnons in a small yttri…
Non-Markovian Dynamics of Quantum Open Systems Embedded in a Hybrid Environment
Xinyu Zhao, Wufu Shi, J. Q. You +1
Quantum systems of interest are typically coupled to several quantum channels (more generally environments). In this paper, we develop an exact stochastic Schrödinger equation for…
Nonadiabatic holonomic quantum computation with dressed-state qubits
Zheng-Yuan Xue, Feng-Lei Gu, Zhuo-Ping Hong +4
Implementing holonomic quantum computation is a challenging task as it requires complicated interaction among multilevel systems. Here we propose to implement nonadiabatic holonomi…
Holonomic quantum computation in the ultrastrong-coupling regime of circuit QED
Yimin Wang, Jiang Zhang, Chunfeng Wu +2
We present an experimentally feasible scheme to implement holonomic quantum computation in the ultrastrong-coupling regime of light-matter interaction. The large anharmonicity and…
Single-photon-driven high-order sideband transitions in an ultrastrongly coupled circuit quantum electrodynamics system
Zhen Chen, Yimin Wang, Tiefu Li +8
We report the experimental observation of high-order sideband transitions at the single-photon level in a quantum circuit system of a flux qubit ultrastrongly coupled to a coplanar…
Ground-state phase diagram of the quantum Rabi model
Zu-Jian Ying, Maoxin Liu, Hong-Gang Luo +2
The Rabi model plays a fundamental role in understanding light-matter interaction. It reduces to the Jaynes-Cummings model via the rotating-wave approximation, which is applicable…
Quantum Langevin approach for non-Markovian quantum dynamics of the spin-boson model
Zheng-Yang Zhou, Mi Chen, Ting Yu +1
One long-standing difficult problem in quantum dissipative dynamics is to solve the spin-boson model in a non-Markovian regime where a tractable systematic master equation does not…
Nonperturbative stochastic dynamics driven by strongly correlated colored noises
Jun Jing, Rui Li, J. Q. You +1
We establish for the first time an exact stochastic dynamical equation for an open quantum systems coupled to correlated noises. We rigorously investigate the nonequilibrium dynami…
Approach to solving spin-boson dynamics via non-Markovian quantum trajectories
Zeng-Zhao Li, Cho-Tung Yip, Hai-Yao Deng +4
We develop a systematic and efficient approach for numerically solving the non-Markovian quantum state diffusion equations for open quantum systems coupled to an environment up to…
Coupling spin ensembles via superconducting flux qubits
Yueyin Qiu, Wei Xiong, Lin Tian +1
We study a hybrid quantum system consisting of spin ensembles and superconducting flux qubits, where each spin ensemble is realized using the nitrogen-vacancy centers in a diamond…
A superconducting circuit probe for analog quantum simulators
Liang-Hui Du, J. Q. You, Lin Tian
Analog quantum simulators can be used to study quantum correlation in novel many-body systems by emulating the Hamiltonian of these systems. One essential question in quantum simul…
Electromagnetically induced transparency and Autler-Townes splitting in superconducting flux quantum circuits
Hui-Chen Sun, Yu-xi Liu, J. Q. You +2
We study the microwave absorption of a driven three-level quantum system, which is realized by a superconducting flux quantum circuit (SFQC), with a magnetic driving field applied…
Quantum memory using a hybrid circuit with flux qubits and NV centers
Xin-You Lü, Ze-Liang Xiang, Wei Cui +2
We propose how to realize high-fidelity quantum storage using a hybrid quantum architecture including two coupled flux qubits and a nitrogen-vacancy center ensemble (NVE). One of t…
Dynamics of coupled cavity arrays embedded in a non-Markovian bath
Xinyu Zhao, Jun Jing, J. Q. You +1
In this paper, the non-Markovian quantum dynamics of a coupled -cavity model is studied based on the quantum state diffusion (QSD) approach. The time-local Diósi-Gisin-Strunz eq…
Non-Markovian quantum state diffusion for an open quantum system in fermionic environments
Mi Chen, J. Q. You
Non-Markovian quantum state diffusion (NMQSD) provides a powerful approach to the dynamics of an open quantum system in bosonic environments. Here we develop an NMQSD method to stu…
Non-Markovian Quantum Trajectories of Many-Body Quantum Open Systems
Jun Jing, Xinyu Zhao, J. Q. You +2
A long-standing open problem in non-Markovian quantum state diffusion (QSD) approach to open quantum systems is to establish the non-Markovian QSD equations for multiple qubit syst…