DETERMINISTIC QUANTUM DENSE CODING WITH A GENUINE MULTIPARTITE ENTANGLEMENT IN LINEAR OPTICAL SYSTEM

2011 ◽  
Vol 09 (05) ◽  
pp. 1291-1298 ◽  
Author(s):  
YI WANG ◽  
LIU YE ◽  
QING-MIN SONG ◽  
BAO-LONG FANG
Keyword(s):  
Quantum Information ◽  
Optical System ◽  
Quantum Physics ◽  
Quantum Information Processing ◽  
Entangled State ◽  
Multipartite Entanglement ◽  
Dense Coding ◽  
Quantum Dense Coding ◽  
Linear Optical ◽  
Genuine Multipartite Entanglement

We propose two schemes for realizing dense coding in linear optical system. These schemes are based on a genuine four-qubit entangled state |Ψ〉 as a shared resource of entanglement. There are many interesting properties and possible applications in quantum information processing and fundamental tests of quantum physics by this state. By distinguishing Alice's operation we can easily achieve the dense-coding.

Quantum dense coding using a peculiar tripartite entangled state

2006 ◽  
Vol 16 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Cheng Wei-Wen ◽  
Huang Yan-Xia ◽  
Liu Tang-Kun ◽  
Li Hong
Keyword(s):  
Entangled State ◽  
Dense Coding ◽  
Quantum Dense Coding ◽  
Tripartite Entangled State

scholarly journals Construction of genuinely entangled subspacesand the associated bounds on entanglement measures for mixed states

2021 ◽  
Author(s):  
Konstantin Antipin
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Lower Bounds ◽  
Quantum Information Processing ◽  
Multipartite Entanglement ◽  
Quantum Channels ◽  
Valuable Resource ◽  
Mixed States ◽  
Entanglement Measures ◽  
Pure States

Abstract Genuine entanglement is the strongest form of multipartite entanglement. Genuinely entangled pure states contain entanglement in every bipartition and as such can be regarded as a valuable resource in the protocols of quantum information processing. A recent direction of research is the construction of genuinely entangled subspaces — the class of subspaces consisting entirely of genuinely entangled pure states. In this paper we present methods of construction of such subspaces including those of maximal possible dimension. The approach is based on the composition of bipartite entangled subspaces and quantum channels of certain types. The examples include maximal subspaces for systems of three qubits, four qubits, three qutrits. We also provide lower bounds on two entanglement measures for mixed states, the concurrence and the convex-roof extended negativity, which are directly connected with the projection on genuinely entangled subspaces.

scholarly journals PARTICLE STATISTICS IN QUANTUM INFORMATION PROCESSING

2005 ◽  
Vol 03 (01) ◽  
pp. 201-205 ◽  
Author(s):  
YASSER OMAR
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Physics ◽  
Quantum Information Processing ◽  
Fundamental Aspect ◽  
Fundamental Part ◽  
Particle Statistics

Particle statistics is a fundamental part of quantum physics, and yet its role and use in the context of quantum information have been poorly explored so far. After briefly introducing particle statistics and the Symmetrization Postulate, we argue that this fundamental aspect of nature can be seen as a resource for quantum information processing and present examples showing how it is possible to do useful and efficient quantum information processing using only the effects of particle statistics.

Linear Optical Quantum Information Processing, Imaging, and Sensing

2007 ◽  
Author(s):  
Nickolas M. VanMeter ◽  
Zhanghan Wu ◽  
Hugo Cable ◽  
Gabriel A. Durkin ◽  
Pavel Lougovski ◽  
...  
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Information Processing ◽  
Linear Optical
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