# Quantum nonlocality for entanglement of quasiclassical states.

@article{Zhong2019QuantumNF, title={Quantum nonlocality for entanglement of quasiclassical states.}, author={Zhi-Rong Zhong and Jian-Qi Sheng and Li-Hua Lin and Shi-Biao Zheng}, journal={Optics letters}, year={2019}, volume={44 7}, pages={ 1726-1729 } }

Entanglement of quasiclassical (coherent) states of two harmonic oscillators leads to striking quantum effects and is useful for quantum technologies. These effects and applications are closely related to nonlocal correlations inherent in these states, manifested by the violation of Bell inequalities. With previous frameworks, this violation is limited by the size of the system, which does not approach the maximum, even when the amount of entanglement approaches its maximum. Here, we propose a…

## 2 Citations

### Nearly maximal violation of the Mermin-Klyshko inequality with multimode entangled coherent states.

- PhysicsOptics express
- 2019

It is shown that the Mermin-Klyshko signal obtained with these operators can approach the maximal value even when the average quantum number in each mode is only 1, and the inequality violation exponentially increases with the number of entangled modes.

### Transferring quantum entangled states between multiple single-photon-state qubits and coherent-state qubits in circuit QED

- Physics
- 2021

We present a way to transfer maximallyor partially-entangled states of n single-photon-state (SPS) qubits onto n coherent-state (CS) qubits, by employing 2n microwave cavities coupled to a…

## References

SHOWING 1-10 OF 34 REFERENCES

### TESTING QUANTUM NONLOCALITY IN PHASE SPACE

- Physics
- 1999

We propose an experiment demonstrating the nonlocality of a quantum singlet-like state generated from a single photon incident on a beam splitter. Each of the two spatially separated apparatuses in…

### Quantum nonlocality test for continuous-variable states with dichotomic observables

- Physics, Mathematics
- 2003

There have been theoretical and experimental studies on quantum nonlocality for continuous variables, based on dichotomic observables. In particular, we are interested in two cases of dichotomic…

### A proposal to test Bell’s inequalities with mesoscopic non-local states in cavity QED

- Physics
- 2005

Abstract.We propose a cavity quantum electrodynamics (CQED) experiment to test the violation of a Bell-type inequality using non-local mesoscopic states (NLMS). These states involve coherent field…

### Review of entangled coherent states

- Physics
- 2012

We review entangled coherent state research since its first implicit use in 1967 to the present. Entangled coherent states are important to quantum superselection principles, quantum information…

### Extending the lifetime of a quantum bit with error correction in superconducting circuits

- PhysicsNature
- 2016

A QEC system that reaches the break-even point by suppressing the natural errors due to energy loss for a qubit logically encoded in superpositions of Schrödinger-cat states of a superconducting resonator is demonstrated.

### Shifting the Quantum-Classical Boundary: Theory and Experiment for Statistically Classical Optical Fields

- Physics
- 2015

The growing recognition that entanglement is not exclusively a quantum property, and does not even originate with Schr\"odinger's famous remark about it [Proc. Camb. Phil. Soc. 31, 555 (1935)],…

### Maximal violation of Bell's inequalities for continuous variable systems.

- PhysicsPhysical review letters
- 2002

It is demonstrated that two-mode squeezed vacuum states display quantum nonlocality by using the generalized Bell operator, which is generalized to biparty systems with continuous quantum variables.

### Generation of nonclassical states with a driven dispersive interaction (5 pages)

- Physics
- 2006

We propose a scheme for the generation of various nonclassical states for a cavity field with a driven atom. In the scheme the atom is sent through the cavity and driven by a classical field. The…

### Cavity State Manipulation Using Photon-Number Selective Phase Gates.

- PhysicsPhysical review letters
- 2015

This work introduces the selective number-dependent arbitrary phase (snap) gate, which imparts a different phase to each Fock-state component using an off-resonantly coupled qubit, and creates a one-photon Fock state with high fidelity.

### Generation and stabilization of entangled coherent states for the vibrational modes of a trapped ion

- PhysicsPhysical Review A
- 2018

We propose a scheme for preparation of entangled coherent states for the motion of an ion in a two-dimensional anisotropic trap. In the scheme, the ion is driven by four laser beams along different…