131 citations · 561 across the 15 of their papers we have counts for
15 papers
Gatemon qubit based on a thin InAs-Al hybrid nanowire
Jierong Huo, Zezhou Xia, Zonglin Li +12
We study a gate-tunable superconducting qubit (gatemon) based on a thin InAs-Al hybrid nanowire. Using a gate voltage to control its Josephson energy, the gatemon can reach the str…
Parity-dependent unidirectional and chiral photon transfer in reversed-dissipation cavity optomechanics
Zhen Chen, Qichun Liu, Jingwei Zhou +4
Nonreciprocal elements, such as isolators and circulators, play an important role in classical and quantum information processing. Recently, strong nonreciprocal effects have been…
Hybridized Frequency Combs in Multimode Cavity Electromechanical System
Sishi Wu, Yulong Liu, Qichun Liu +3
The cavity electromechanical devices with radiation-pressure-interaction induced Kerr-like nonlinearity are promising candidates to generate microwave frequency combs. We construct…
Quantum backaction evading measurements of a silicon nitride membrane resonator
Yulong Liu, Jingwei Zhou, Laure Mercier de Lépinay +1
Quantum backaction disturbs the measurement of the position of a mechanical oscillator by introducing additional fluctuations. In a quantum backaction measurement technique, the ba…
Optomechanical Anti-lasing with Infinite Group Delay at a Phase Singularity
Yulong Liu, Qichun Liu, Shuaipeng Wang +3
Singularities that symbolize abrupt changes and exhibit extraordinary behavior are of broad interest. We experimentally study optomechanically induced singularities in a compound s…
Energy-level-attraction and heating-resistant-cooling of mechanical resonators with exceptional points
Cheng Jiang, Yu-Long Liu, Mika A. Sillanpää
We study the energy-level evolution and ground-state cooling of mechanical resonators under a synthetic phononic gauge field. The tunable gauge phase is mediated by the phase diffe…
Prospects for observing gravitational forces between nonclassical mechanical oscillators
Yulong Liu, Jay Mummery, Mika A. Sillanpää
Interfacing quantum mechanics and gravity is one of the great open questions in natural science. Micromechanical oscillators have been suggested as a plausible platform to carry ou…
Observation of anti-PT symmetry phase transition in the magnon-cavity-magnon coupled system
Jie Zhao, Yulong Liu, Longhao Wu +3
As the counterpart of PT symmetry, abundant phenomena and potential applications of anti-PT symmetry have been predicted or demonstrated theoretically. However, experimental realiz…
Synchronization in PT-symmetric optomechanical resonators
Chang-long Zhu, Yu-long Liu, Lan Yang +2
Synchronization has great impacts in various fields such as self-clocking, communication, neural networks, etc. Here we present a mechanism of synchronization for two mechanical mo…
Mechanically modulated emission spectra and blockade of polaritons
Sai-Nan Huai, Yu-Long Liu, Yunbo Zhang +1
We study a hybrid semiconductor-optomechanical system, which consists of a cavity with an oscillating mirror made by semiconducting materials or with a semiconducting membrane insi…
Controllable optical response by modifying the gain and loss of a mechanical resonator and cavity mode in an optomechanical system
Yu-Long Liu, Rebing Wu, Jing Zhang +4
We theoretically study a strongly-driven optomechanical system which consists of a passive optical cavity and an active mechanical resonator. When the optomechanical coupling stren…
Energy localization enhanced ground-state cooling of mechanical resonator from room temperature in optomechanics using a gain cavity
Yu-Long Liu, Yu-xi Liu
When a gain system is coupled to a loss system, the energy usually flows from the gain system to the loss one. We here present a counterintuitive theory for the ground-state coolin…
Giant nonlinearity via breaking parity-time symmetry: a route to low-threshold phonon diodes
Jing Zhang, Bo Peng, Sahin Kaya Ozdemir +6
Nonreciprocal devices that permit wave transmission in only one direction are indispensible in many fields of science including, e.g., electronics, optics, acoustics, and thermodyn…
Generating nonclassical photon-states via longitudinal couplings between superconducting qubits and microwave fields
Yan-Jun Zhao, Yu-Long Liu, Yu-xi Liu +1
Besides the conventional transverse couplings between superconducting qubits (SQs) and electromagnetic fields, there are additional longitudinal couplings when the inversion symmet…
Coherent-feedback-induced photon blockade and optical bistability by an optomechanical controller
Yu-Long Liu, Zhong-Peng Liu, Jing Zhang +1
It is well-known that some nonlinear phenomena such as strong photon blockade are hard to be observed in optomechanical system with current experimental technology. Here, we presen…