246 citations · 2.5k across the 51 of their papers we have counts for
51 papers
Thermal noise cancellation for optomechanically induced nonreciprocity in a whispering-gallery-mode microresonator
Zhi-Xiang Tang, Xun-Wei Xu
Magnetic-free optomechanically induced nonreciprocity may stimulate a wide range of practical applications in quantum technologies. However, how to suppress the thermal noise flow…
Multiterminal Nonreciprocal Routing in an Optomechanical Plaquette via Synthetic Magnetism
Zhi-Xiang Tang, Xun-Wei Xu
Optomechanical systems with parametric coupling between optical (photon) and mechanical (phonon) modes provide a useful platform to realize various magnetic-free nonreciprocal devi…
Control the qubit-qubit coupling in the superconducting circuit with double-resonator couplers
Hui Wang, Yan-Jun Zhao, Hui-Chen Sun +5
We propose a scheme of using two fixed frequency resonator couplers to tune the coupling strength between two Xmon qubits. The induced indirect qubit-qubit interactions by two reso…
Switching classical and quantum nonreciprocities with spinning photonics
Yonglin Xiang, Yunlan Zuo, Xun-Wei Xu +2
We study how to achieve, manipulate, and switch classical or quantum nonreciprocal effects of light with a spinning Kerr resonator. In particular, we show that even when there is n…
Phase-controlled asymmetric optomechanical entanglement against optical backscattering
Jing-Xue Liu, Ya-Feng Jiao, Ying Li +3
Quantum entanglement plays a key role in both understanding the fundamental aspects of quantum physics and realizing various quantum devices for practical applications. Here we pro…
Optomechanical Schrödinger cat states in a cavity Bose-Einstein condensate
Baijun Li, Wei Qin, Ya-Feng Jiao +4
Schrödinger cat states, consisting of superpositions of macroscopically distinct states, provide key resources for a large number of emerging quantum technologies in quantum inform…
Multiple-photon bundle emission in the -photon Jaynes-Cummings model
Shu-Yuan Jiang, Fen Zou, Yi Wang +3
We study the multiple-photon bundle emission in the -photon Jaynes-Cummings model composed of a two-level system coupled to a single-mode optical field via the -photon exciti…
Loss-Induced Quantum Revival
Yunlan Zuo, Ran Huang, Le-Man Kuang +2
Conventional wisdom holds that quantum effects are fragile and can be destroyed by loss. Here, contrary to general belief, we show how to realize quantum revival of optical correla…
Quarter-wave Resonator Based Tunable Coupler for Xmon Qubits
Hui Wang, Yan-Jun Zhao, Rui Wang +4
We propose a scheme of tunable coupler based on quarter-wave resonator for scalable quantum integrated circuits. The open end of the T-type resonator is capacitively coupled to two…
Anti--symmetric Kerr gyroscope
Huilai Zhang, Meiyu Peng, Xun-Wei Xu +1
Non-Hermitian systems can exhibit unconventional spectral singularities called exceptional points (EPs). Various EP sensors have been fabricated in recent years, showing strong spe…
Few-photon optical diode in a chiral waveguide
Jin-Lei Tan, Xun-Wei Xu, Jing Lu +1
We study the coherent transport of one or two photons in a 1D waveguide chirally coupled to a nonlinear resonator. Analytic solutions of the one-photon and two-photon scattering is…
Nonreciprocal optical solitons in a spinning Kerr resonator
Baijun Li, Şahin. K. Özdemir, Xun-Wei Xu +3
We propose a spinning nonlinear resonator as an experimentally accessible platform to achieve nonreciprocal control of optical solitons. Nonreciprocity here results from the relati…
Nonreciprocal transition between two indirectly coupled energy levels
Xun-Wei Xu, Hai-Quan Shi, Ai-Xi Chen
We propose a theoretical scheme to realize nonreciprocal transition between two energy levels that can not coupled directly. Suppose they are coupled indirectly by two auxiliary le…
General corner states in 2D SSH model with intracelluar next-nearest-neighbour hopping
Xun-Wei Xu, Yu-Zeng Li, Zheng-Fang Liu +1
We investigate corner states in a photonic two-dimensional (2D) Su-Schrieffer-Heeger (SSH) model on a square lattice with zero gauge flux. By considering intracelluar next-nearest-…
Vortex-Meissner phase transition induced by two-tone-drive-engineered artificial gauge potential in the fermionic ladder constructed by superconducting qubit circuits
Yan-Jun Zhao, Xun-Wei Xu, Hui Wang +2
We propose to periodically modulate the onsite energy via two-tone drives, which can be furthermore used to engineer artificial gauge potential. As an example, we show that the fer…
Enantiomeric excess determination based on nonreciprocal transition induced spectral line elimination
Xun-Wei Xu, Chong Ye, Yong Li +1
The spontaneous emission spectrum of a multi-level atom or molecule with nonreciprocal transition is investigated. It is shown that the nonreciprocal transition can lead to the eli…
Multiphoton blockade in the two-photon Jaynes-Cummings model
Fen Zou, Xiao-Ya Zhang, Xun-Wei Xu +2
We study multiphoton blockade and photon-induced tunneling effects in the two-photon Jaynes-Cummings model, where a single-mode cavity field and a two-level atom are coupled via a…
Nonreciprocity via nonlinearity and synthetic magnetism
Xun-Wei Xu, Yong Li, Baijun Li +2
We propose how to realize nonreciprocity for a weak input optical field via nonlinearity and synthetic magnetism. We show that the photons transmitting from a linear cavity to a no…
Nonreciprocal transition between two nondegenerate energy levels
Xun-Wei Xu, Yan-Jun Zhao, Hui Wang +2
Stimulated emission and absorption are two fundamental processes of light-matter interaction, and the coefficients of the two processes should be equal in general. However, we will…
Generation of single entangled photon-phonon pairs via an atom-photon-phonon interaction
Xun-Wei Xu, Hai-Quan Shi, Jie-Qiao Liao +1
Quantum blockade and entanglement play important roles in quantum information and quantum communication as quantum blockade is an effective mechanism to generate single photons (ph…
Optimal unidirectional amplification induced by optical gain in optomechanical systems
L. N. Song, Qiang Zheng, Xun-Wei Xu +2
We propose a three-mode optomechanical system to realize optical nonreciprocal transmission with unidirectional amplification, where the system consists of two coupled cavities and…
Nonreciprocal unconventional photon blockade in a spinning optomechanical system
Baijun Li, Ran Huang, Xun-Wei Xu +2
We propose how to achieve quantum nonreciprocity via unconventional photon blockade (UPB) in a compound device consisting of an optical harmonic resonator and a spinning optomechan…
Optomechanically induced nonreciprocity in a three-mode optomechanical system
Xun-Wei Xu, L. N. Song, Qiang Zheng +2
We propose to create optical nonreciprocity in a three-mode optomechanical system comprising one mechanical and two optical modes, where the mechanical mode is coupled with only on…
Nonreciprocal photon blockade via quadratic optomechanical coupling
Xun-Wei Xu, Yan-Jun Zhao, Hui Wang +2
We propose to manipulate the statistic properties of the photons transport nonreciprocally via quadratic optomechanical coupling. We present a scheme to generate quadratic optomech…