21 citations · 25 across the 3 of their papers we have counts for
7 papers · 1 filter
Thermofield dynamics: Quantum Chaos versus Decoherence
Zhenyu Xu, Aurelia Chenu, Tomaž Prosen +1
Quantum chaos imposes universal spectral signatures that govern the thermofield dynamics of a many-body system in isolation. The fidelity between the initial and time-evolving ther…
Optical signatures of Mott-superfluid transition in nitrogen-vacancy centers coupled to photonic crystal cavities
Jia-Bin You, W. L. Yang, G. Chen +4
We study the phenomenon of controllable localization-delocalization transition in a quantum many-body system composed of nitrogen-vacancy centers coupled to photonic crystal caviti…
Probing the Full Distribution of Many-Body Observables by Single-Qubit Interferometry
Zhenyu Xu, Adolfo del Campo
We present an experimental scheme to measure the full distribution of many-body observables in spin systems, both in and out of equilibrium, using an auxiliary qubit as a probe. We…
Experimentally accessible lower bounds for genuine multipartite entanglement and coherence measures
Yue Dai, Yuli Dong, Zhenyu Xu +3
Experimentally quantifying entanglement and coherence are extremely important for quantum resource theory. However, because the quantum state tomography requires exponentially grow…
Extreme Decoherence and Quantum Chaos
Zhenyu Xu, Luis Pedro García-Pintos, Aurélia Chenu +1
We study the ultimate limits to the decoherence rate associated with dephasing processes. Fluctuating chaotic quantum systems are shown to exhibit extreme decoherence, with a rate…
Phase transition of light in circuit QED lattices coupled to nitrogen-vacancy centers in diamond
Jia-Bin You, W. L. Yang, Zhen-Yu Xu +2
We propose a hybrid quantum architecture for engineering a photonicMott insulator-superfluid phase transition in a two-dimensional (2D) square lattice of a superconducting transmis…