74 citations · 571 across the 34 of their papers we have counts for
34 papers
Enhancement of sensitivity near exceptional points in dissipative qubit-resonator systems
Pei-Rong Han, Fan Wu, Xin-Jie Huang +11
Dissipation usually plays a negative role in quantum metrological technologies, which aim to improve measurement precision by leveraging quantum effects that are vulnerable to envi…
Critical quantum metrology robust against dissipation and non-adiabaticity
Jia-Hao Lü, Wen Ning, Fan Wu +6
Critical systems near quantum phase transitions were predicted to be useful for improvement of metrological precision, thanks to their ultra-sensitive response to a tiny variation…
Characterization of non-Markovianity with maximal extractable qubit-reservoir entanglement
Pei-Rong Han, Fan Wu, Xin-Jie Huang +5
Understanding the dynamical behavior of a qubit in a reservoir is critical to applications in quantum technological protocols, ranging from quantum computation to quantum metrology…
Mechanical cooling in the bistable regime of a dissipative optomechanical cavity with a Kerr medium
Ye Liu, Yang Liu, Chang-Sheng Hu +3
In this paper, we study static bistability and mechanical cooling of a dissipative optomechanical cavity filled with a Kerr medium. The system exhibits optical bistability for a wi…
Enhanced sensing of optomechanically induced nonlinearity by linewidth suppression and optical bistability in cavity-waveguide systems
Chun-Wang Liu, Ye Liu, Lei Du +3
We study enhanced sensing of optomechanically induced nonlinearity (OMIN) in a cavity-waveguide coupled system. The Hamiltonian of the system is anti-PT symmetric with the two invo…
Exceptional entanglement phenomena: non-Hermiticity meeting non-classicality
Pei-Rong Han, Fan Wu, Xin-Jie Huang +11
Non-Hermitian (NH) extension of quantum-mechanical Hamiltonians represents one of the most significant advancements in physics. During the past two decades, numerous captivating NH…
Fast spin squeezing by distance-selective long-range interactions with Rydberg molecule dressing
Huaizhi Wu, Xin-Yu Lin, Zong-Xing Ding +3
We propose a Rydberg molecule dressing scheme to create strong and long-ranged interactions at selective distances. This is achieved through laser coupling ground-state atoms off-r…
Nonreciprocal light transmission via optomechanical parametric interactions
Yan-Ting Lan, Wan-Jun Su, Huaizhi Wu +2
Nonreciprocal transmission of optical or microwave signals is indispensable in various applications involving sensitive measurements. In this paper, we study optomechanically induc…
Experimental demonstration of Cavity-Free Optical Isolators and Optical Circulators
En-Ze Li, Dong-Sheng Ding, Yi-Chen Yu +9
Cavity-free optical nonreciprocity components, which have an inherent strong asymmetric interaction between the forward- and backward-propagation direction of the probe field, are…
Manifestation of classical nonlinear dynamics in optomechanical entanglement with a parametric amplifier
Chang-Sheng Hu, Li-Tuo Shen, Zhen-Biao Yang +3
Cavity optomechanical system involving an optical parametric amplifier (OPA) can exhibit rich classical and quantum dynamical behaviors. By simply modulating the frequency of the l…
Dissipative entanglement preparation via Rydberg antiblockade and Lyapunov control
Zong-Xing Ding, Chang-Sheng Hu, Li-Tuo Shen +3
Preparation of entangled steady states via dissipation and pumping in Rydberg atoms has been recently found to be useful for quantum information processing. The driven-dissipative…
Robust Rydberg gate via Landau-Zener control of Förster resonance
Xi-Rong Huang, Zong-Xing Ding, Chang-Sheng Hu +4
In this paper, we propose a scheme to implement the two-qubit controlled-Z gate via the Stark-tuned Förster interaction of Rydberg atoms, where the Förster defect is driven by a ti…
Rydberg-interaction gates via adiabatic passage and phase control of driving fields
Huaizhi Wu, Xi-Rong Huang, Chang-Sheng Hu +2
In this paperwe propose two theoretical schemes for implementation of quantum phase gates by engineering the phase-sensitive dark state of two atoms subjected to Rydberg-Rydberg in…
Twofold mechanical squeezing in a cavity optomechanical system
Chang-Sheng Hu, Zhen-Biao Yang, Huaizhi Wu +2
We investigate the dynamics of an optomechanical system where a cavity with a movable mirror involves a degenerate optical parametric amplifier and is driven by a periodically modu…
Quantum simulation of gravitational-like waves in minisuperspace with an artificial qubit
Ze-Lin Zhang, Ming-Feng Chen, Huai-Zhi Wu +1
On the background of the Born-Oppenheimer (adiabatic) approximation, we investigate the geometrical and topological structure in the theory of quantum gravity by using the path int…
Enhancement of entanglement in distant micromechanical mirrors using parametric interactions
Chang-Sheng Hu, Xi-Rong Huang, Li-Tuo Shen +2
We theoretically investigate the stability of a two cascaded cavity optomechanical system with optical parametric amplifiers (OPAs) inside the two coupled cavities, and study the s…
Quantum simulation of Abelian Wu-Yang monopoles in spin-1/2 systems
Ze-Lin Zhang, Ming-Feng Chen, Huai-Zhi Wu +1
With the help of the Berry curvature and the first Chern number , we both analytically and numerically investigate and thus simulate artificial magnetic monopol…
External control of qubit-photon interaction and multi-qubit reset in a dissipative quantum network
Xian-Peng Zhang, Li-Tuo Shen, Zhang-Qi Yin +3
A quantum network is a promising quantum many-body system because of its tailored geometry and controllable interaction. Here, we propose an external control scheme for the qubit-p…
Quantum signature for laser-driven correlated excitation of Rydberg atoms
Huaizhi Wu, Yong Li, Zhen-Biao Yang +1
The excitation dynamics of a laser-driven Rydberg gas exhibits a cooperative effect due to the interatomic Rydberg-Rydberg interaction, but the large many-body system with inhomoge…
Resonator-Assisted Quantum Bath Engineering of a Flux Qubit
Xian-Peng Zhang, Li-Tuo Shen, Zhang-Qi Yin +2
We demonstrate quantum bath engineering for preparation of any orbital state with controllable phase factor of a superconducting flux qubit assisted by a microwave coplanar wavegui…
Electromagnetically induced transparency with controlled van der Waals interaction
Huaizhi Wu, Meng-Meng Bian, Li-Tuo Shen +3
We study the electromagnetically induced transparency (EIT) effect with two individually addressed four-level Rydberg atoms subjected to the interatomic van der Waals interaction.…
Quantum phase transition of polaritonic excitations in a multi-excitation coupled array
Li-Tuo Shen, Rong-Xin Chen, Huai-Zhi Wu +3
We analyze the quantum phase transition-like behavior in the lowest energy state of a two-site coupled atom-cavity system, where each cavity contains one atom but the total excitat…
Distributed manipulation of two-qubit entanglement with coupled continuous variables
Li-Tuo Shen, Rong-Xin Chen, Huai-Zhi Wu +1
We study the dynamics of two qubits separately sent through two coupled resonators, each initially containing a coherent state field. We present analytical arguments and numerical…
Adiabatic approximation for three qubits ultrastrongly coupled to a harmonic oscillator
Li-Tuo Shen, Rong-Xin Chen, Huai-Zhi Wu +1
We study the system involving mutual interaction between three qubits and an oscillator within the ultrastrong coupling regime. We apply adiabatic approximation approach to explore…