Quantum key distribution using continuous-variable non-Gaussian states
نویسندگان
چکیده
منابع مشابه
Quantum Key Distribution using Continuous-variable non-Gaussian States
In this work we present a quantum key distribution protocol using continuous-variable nonGaussian states, homodyne detection and post-selection. The employed signal states are the Photon Added then Subtracted Coherent States (PASCS) in which one photon is added and subsequently one photon is subtracted. We analyze the performance of our protocol, compared to a coherent state based protocol, for...
متن کاملGaussian Quadrature Inference for Multicarrier Continuous-Variable Quantum Key Distribution
We propose the Gaussian quadrature inference (GQI) method for multicarrier continuousvariable quantum key distribution (CVQKD). A multicarrier CVQKD protocol utilizes Gaussian subcarrier quantum continuous variables (CV) for information transmission. The GQI framework provides a minimal error estimate of the quadratures of the CV quantum states from the discrete, measured noisy subcarrier varia...
متن کاملContinuous variable quantum key distribution with modulated entangled states.
Quantum key distribution enables two remote parties to grow a shared key, which they can use for unconditionally secure communication over a certain distance. The maximal distance depends on the loss and the excess noise of the connecting quantum channel. Several quantum key distribution schemes based on coherent states and continuous variable measurements are resilient to high loss in the chan...
متن کاملGaussian states in continuous variable quantum information
ISBN 88-7088-483-X (Bibliopolis, Napoli, 2005) http://www.bibliopolis.it These notes originated out of a set of lectures in Quantum Optics and Quantum Information given by one of us (MGAP) at the University of Napoli and the University of Milano. A quite broad set of issues are covered, ranging from elementary concepts to current research topics, and from fundamental concepts to applications. A...
متن کاملNon-Gaussian postselection and virtual photon subtraction in continuous-variable quantum key distribution
Zhengyu Li, Yichen Zhang, Xiangyu Wang, Bingjie Xu, Xiang Peng, and Hong Guo1∗ State Key Laboratory of Advanced Optical Communication Systems and Networks, Center for Computational Science & Engineering (CCSE) and Center for Quantum Information Technology, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China Science and Technology on Security Communic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Quantum Information Processing
سال: 2015
ISSN: 1570-0755,1573-1332
DOI: 10.1007/s11128-015-1193-8