Complete condition for nonzero quantum correlation in continuous variable systems

Quantum correlation provides a promising measure beyond entanglement. Here, we propose a necessary and sufficient condition for nonzero quantum correlation in continuous variable systems, which is simple and easy to perform in terms of a marker Q _r . In order to get this condition, we introduce con...

Full description

Bibliographic Details
Published in:	New Journal of Physics
Main Authors:	Chengjie Zhang, Sixia Yu, Qing Chen, Haidong Yuan, C H Lai, C H Oh
Format:	Article
Language:	English
Published:	IOP Publishing 2015-01-01
Subjects:	quantum correlation continuous variables quantum circuits
Online Access:	https://doi.org/10.1088/1367-2630/17/9/093007

Similar Items

Spacetime replication of continuous variable quantum information
by: Patrick Hayden, et al.
Published: (2016-01-01)

Teleportation-based continuous-variable quantum digital signature
by: Wei Zhao, et al.
Published: (2023-10-01)

Continuous Variable Quantum Key Distribution with a Noisy Laser
by: Christian S. Jacobsen, et al.
Published: (2015-07-01)

Redundancy and Synergy of an Entangling Cloner in Continuous-Variable Quantum Communication
by: Vladyslav C. Usenko
Published: (2022-10-01)

A complete continuous-variable quantum computation architecture based on the 2D spatiotemporal cluster state
by: Peilin Du, et al.
Published: (2025-05-01)

Control Power in Continuous Variable Controlled Quantum Teleportation
by: Yuehan Tian, et al.
Published: (2024-11-01)

Free space continuous variable Quantum Key Distribution with discrete phases
by: Anju Rani, et al.
Published: (2023-12-01)

Adaptive Continuous-Variable Quantum Key Distribution with Discrete Modulation Regulative in Free Space
by: Yiwu Zhu, et al.
Published: (2022-11-01)

Multipartite Continuous Variable Quantum Conferencing Network with Entanglement in the Middle
by: Zhaoyuan Zhang, et al.
Published: (2018-08-01)

Continuous-variable ramp quantum secret sharing with Gaussian states and operations
by: Masoud Habibidavijani, et al.
Published: (2019-01-01)

Continuous-Variable Quantum Secret Sharing in Fast-Fluctuating Channels
by: Fangli Yang, et al.
Published: (2023-01-01)

Robustness of entanglement-based discrete- and continuous-variable quantum key distribution against channel noise
by: Mikołaj Lasota, et al.
Published: (2023-01-01)

Applicability of Squeezed- and Coherent-State Continuous-Variable Quantum Key Distribution over Satellite Links
by: Ivan Derkach, et al.
Published: (2020-12-01)

Quantum Hacking on an Integrated Continuous-Variable Quantum Key Distribution System via Power Analysis
by: Yi Zheng, et al.
Published: (2021-01-01)

Enhancing of Self-Referenced Continuous-Variable Quantum Key Distribution with Virtual Photon Subtraction
by: Hai Zhong, et al.
Published: (2018-08-01)

Optical Frequency Comb-Based Continuous-Variable Quantum Secret Sharing Scheme
by: Runsheng Peng, et al.
Published: (2025-07-01)

Distributed quantum sensing enhanced by continuous-variable error correction
by: Quntao Zhuang, et al.
Published: (2020-01-01)

The Rationale for the Optimal Continuous-Variable Quantum Key Distribution Protocol
by: Roman Goncharov, et al.
Published: (2022-09-01)

Hierarchy of continuous-variable quantum resource theories
by: Giulio Gianfelici, et al.
Published: (2021-01-01)

Lengthening Transmission Distance of Continuous Variable Quantum Key Distribution with Discrete Modulation through Photon Catalyzing
by: Zhengchun Zhou, et al.
Published: (2020-11-01)

Optimizing state-discrimination receivers for continuous-variable quantum key distribution over a wiretap channel
by: M N Notarnicola, et al.
Published: (2023-01-01)

Fading channel estimation for free-space continuous-variable secure quantum communication
by: László Ruppert, et al.
Published: (2019-01-01)

Continuous variable multimode quantum states via symmetric group velocity matching
by: V Roman-Rodriguez, et al.
Published: (2021-01-01)

Generation and Detection of Continuous Variable Quantum Vortex States via Compact Photonic Devices
by: David Barral, et al.
Published: (2017-01-01)

Continuous-Variable Entanglement Swapping
by: Kevin Marshall, et al.
Published: (2015-05-01)

A Survey of Continuous Variable Quantum Key Distribution in Quantum Communication
by: Samuel Leyikun Birhanu, et al.
Published: (2025-01-01)

Subcarrier wave continuous-variable quantum key distribution with Gaussian modulation: composable security analysis
by: R.K. Goncharov, et al.
Published: (2023-06-01)

Practical Security of Continuous Variable Quantum Key Distribution Ascribable to Imperfect Modulator for Fiber Channel
by: Shengzhe Xu, et al.
Published: (2024-04-01)

Method for the Quantum Metric Tensor Measurement in a Continuous Variable System
by: Ling-Shan Lin, et al.
Published: (2023-02-01)

Continuous-Variable Quantum Key Distribution Protocol Based on Post-Selection
by: Hao YU, et al.
Published: (2019-07-01)

Continuous-variable quantum key distribution over a 15 km multi-core fiber
by: S Sarmiento, et al.
Published: (2022-01-01)

All non-Gaussian states are advantageous for channel discrimination: robustness of non-convex continuous variable quantum resources
by: Leah Turner, et al.
Published: (2025-01-01)

On-demand continuous-variable quantum entanglement source for integrated circuits
by: Günay Mehmet, et al.
Published: (2023-01-01)

Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution
by: Amene Shafiee, et al.
Published: (2025-02-01)

On the problem of non-zero word error rates for fixed-rate error correction codes in continuous variable quantum key distribution
by: Sarah J Johnson, et al.
Published: (2017-01-01)

Feasibility and parameter optimization of ground-to-satellite uplink continuous-variable quantum key distribution
by: Jin Cheng, et al.
Published: (2025-01-01)

Noiseless Attenuation for Continuous-Variable Quantum Key Distribution over Ground-Satellite Uplink
by: Shengjie Xu, et al.
Published: (2021-11-01)

Gain Saturation Modified Quantum Noise Effect on Preparing a Continuous-Variable Entanglement
by: Saeid Vashahri-Ghamsari, et al.
Published: (2022-08-01)

Efficient and reliable detection of nonlocal quantum correlations in continuous-variable and hybrid states via random measurements
by: Artur Barasiński, et al.
Published: (2024-01-01)

Discrete-modulation continuous-variable quantum key distribution with a high key rate
by: Pu Wang, et al.
Published: (2023-01-01)