Showing 2021 · quant-phShow all

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quant-ph2021★ 20 cited

Multicell Atomic Quantum Memory as a Hardware-Efficient Quantum Repeater Node

Chang Li, Sheng Zhang, Yukai Wu +3

For scalable quantum communication and networks, a key step is to realize a quantum repeater node that can efficiently connect different segments of atom-photon entanglement using…

quant-ph2021★ 25 cited

Quantum nonlinear spectroscopy of single nuclear spins

Jonas Meinel, Vadim Vorobyov, Ping Wang +7

Nonlinear spectroscopy is widely used for studying physical systems. Conventional nonlinear optical spectroscopy and magnetic resonance spectroscopy, which use classical probes suc…

quant-ph2021★ 11 cited

Optical nonreciprocity in rotating diamond with nitrogen-vacancy center

Hong-Bo Huang, Jun-Jie Lin, Yi-Xuan Yao +3

We theoretically propose a method to realize optical nonreciprocity in rotating nano-diamond with a nitrogen-vacancy (NV) center. Because of the relative motion of the NV center wi…

quant-ph2021

Quantum Radon Transform and Its Application

Guangsheng Ma, Hongbo Li, Jiman Zhao

This paper extends the Radon transform, a classical image processing tool for fast tomography and denoising, to the quantum computing platform. A new kind of periodic discrete Rado…

quant-ph2021★ 15 cited

Quantum metrology with one auxiliary particle in a correlated bath and its quantum simulation

Wan-Ting He, Huan-Yu Guang, Zi-Yun Li +5

In realistic metrology, entangled probes are more sensitive to noise, especially for a correlated environment. The precision of parameter estimation with entangled probes is even l…

quant-ph2021★ 3 cited

Geometric Manipulation of a Decoherence-Free Subspace in Atomic Ensembles

Dongni Chen, Si Luo, Ying-Dan Wang +2

We consider an ensemble of atoms with -type level structure trapped in a single-mode cavity, and propose a geometric scheme of coherent manipulation of quantum states on the sub…

quant-ph2021★ 65 cited

Lower and upper bounds of quantum battery power in multiple central spin systems

Li Peng, Wen-Bin He, Stefano Chesi +2

We study the energy transfer process in quantum battery systems consisting of multiple central spins and bath spins. Here with "quantum battery" we refer to the central spins, wher…

quant-ph2021

Determination of the critical exponents in dissipative phase transitions: Coherent anomaly approach

Jiasen Jin, Wen-Bin He, Fernando Iemini +4

We propose a generalization of the coherent anomaly method to extract the critical exponents of a phase transition occurring in the steady-state of an open quantum many-body system…

quant-ph2021★ 3 cited

Controllable non-reciprocal transmission of single photon in Mobius structure

Hai-Yuan Zhu, Xin-Yuan Hu, Jun-Jie Lin +5

We propose a controllable non-reciprocal transmission model. The model consists of a Mobius ring, which is connected with two one-dimensional semi-infinite chains, and with a two-l…