scholarly journals Multipartite Entanglement for Continuous Variables: A Quantum Teleportation Network

2000 ◽  
Vol 84 (15) ◽  
pp. 3482-3485 ◽  
Author(s):  
P. van Loock ◽  
Samuel L. Braunstein
Keyword(s):  
Quantum Teleportation ◽  
Multipartite Entanglement ◽  
Continuous Variables

Entanglement and nonlocality for a mixture of a pair-coherent state

2003 ◽  
Vol 3 (2) ◽  
pp. 106-115
Author(s):  
S. Mancini ◽  
P. Tombesi
Keyword(s):  
Coherent State ◽  
Quantum Teleportation ◽  
Single Photon ◽  
Continuous Variables ◽  
Bell’S Inequalities ◽  
Nonclassical Properties ◽  
Pair Coherent State ◽  
Photon Loss ◽  
Phase Randomization ◽  
Degree Of Entanglement

We consider a bipartite continuous variables quantum mixture coming from phase randomization of a pair-coherent state. We study the nonclassical properties of such a mixture. In particular, we quantify its degree of entanglement, then we show possible violations of Bell's inequalities. We also consider the use of this mixture in quantum teleportation. Finally, we compare this mixture with that obtained from a pair-coherent state by single photon loss.

Theoretical Aspects of Continuous Variables Quantum Teleportation Based on Phase-Sensitive Four-Wave Mixing

2018 ◽  
Vol 58 (1) ◽  
pp. 323-331 ◽  
Author(s):  
Wenting Diao ◽  
Chunxiao Cai ◽  
Wenhai Yang ◽  
Xuerui Song ◽  
Chongdi Duan
Keyword(s):  
Quantum Teleportation ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Continuous Variables ◽  
Phase Sensitive

MULTIPARTITE COHERENT ENTANGLED STATE OF CONTINUOUS VARIABLES: STRUCTURE AND GENERATION

2009 ◽  
Vol 24 (14) ◽  
pp. 2689-2701 ◽  
Author(s):  
LI-YUN HU ◽  
HONG-YI FAN
Keyword(s):  
Wigner Function ◽  
Quantum Teleportation ◽  
Entangled State ◽  
Entangled State Representation ◽  
Continuous Variables ◽  
State Representation ◽  
New Approach ◽  
Beam Splitters ◽  
Multipartite Entangled State

Motivated by the new approach to finding multipartite entangled state representation [Int. J. Mod. Phys. A22, 4481 (2007)], we construct the multipartite coherent entangled state (MCES) of continuous variables which exhibits both coherent state's and entangled state's properties. A protocol of generating such an MCES is proposed by using beam splitters in a sequence. Applications of MCES in studying generalized Wigner function, squeezing and quantum teleportation are discussed.

scholarly journals Generation and Application of Nested Entanglement in Matryoshka Quantum Resource-States

2020 ◽  
Author(s):  
Mrittunjoy Guha Majumdar
Keyword(s):  
Quantum Teleportation ◽  
Quantum Information Processing ◽  
Quantum States ◽  
Bell States ◽  
Controlled Teleportation ◽  
Multipartite Entanglement ◽  
Spin Interaction ◽  
State Generation ◽  
Qubit States ◽  
Resource State

Multipartite entanglement is a resource for application in disparate protocols, of computing, communication and cryptography. Nested entanglement provides resource-states for quantum information processing. In this paper, Matryoshka quantum resource-states, which contain nested entanglement patterns, has been studied. A novel scheme for the generation of such quantum states has been proposed using an anisotropic XY spin-spin interaction-based model. The application of the Matryoshka GHZ-Bell states for n-qubit teleportation is reviewed and an extension to more general Matryoshka ExhS-Bell states is posited. An example of Matryoshka ExhS-Bell states is given in the form of the genuinely entangled seven-qubit Xin-Wei Zha state. Generation, characterisation and application of this seven-qubit resource state in theoretical schemes for quantum teleportation of arbitrary one, two and three qubits states, bidirectional teleportation of arbitrary two qubit states and probabilistic circular controlled teleportation are presented.

scholarly journals Fidelity and information in the quantum teleportation of continuous variables

2000 ◽  
Vol 62 (6) ◽  
Author(s):  
Holger Hofmann ◽  
Toshiki Ide ◽  
Takayoshi Kobayashi ◽  
Akira Furusawa
Keyword(s):  
Quantum Teleportation ◽  
Continuous Variables

Quantum teleportation of an entangled pair for continuous variables

2001 ◽  
Vol 91 (3) ◽  
pp. 418-422
Author(s):  
V. N. Gorbachev ◽  
A. I. Zhiliba ◽  
A. I. Trubilko
Keyword(s):  
Quantum Teleportation ◽  
Continuous Variables
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