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5 papers · 2 filters
General quantum error-correcting code with entanglement based on codeword stabilized quantum code
Jeonghwan Shin, Jun Heo, Todd A. Brun
In this paper, we introduce a unified framework to construct entanglement-assisted quantum error-correcting codes, including additive and nonadditive codes, based on the codeword s…
Creating a tunable spin squeezing via a time-dependent collective atom-photon coupling
Lixian Yu, Jingtao Fan, Shiqun Zhu +3
We present an experimentally feasible method to produce a large and tunable spin squeezing when an ensemble of many four-level atoms interacts simultaneously with a single-mode pho…
Nonclassical mechanical states in an optomechanical micromaser analogue
P. D. Nation
Here we show that quantum states of a mechanical oscillator can be generated in an optomechanical analogue of the micromaser, in absence of any atom-like subsystem, thus exhibiting…
Quantum phases in circuit QED with a superconducting qubit array
Yuanwei Zhang, Lixian Yu, J. -Q. Liang +3
Circuit QED on a chip has become a powerful platform for simulating complex many-body physics. In this report, we realize a Dicke-Ising model with an antiferromagnetic nearest-neig…
Entanglement generation and quantum information transfer between spatially-separated qubits in different cavities
Chui-Ping Yang, Qi-Ping Su, Franco Nori
The generation and control of quantum states of spatially-separated qubits distributed in different cavities constitute fundamental tasks in cavity quantum electrodynamics. An inte…