Entanglement property of the Werner state in accelerated frames

2019 ◽  
Vol 18 (10) ◽  
Author(s):  
Wen-Chao Qiang ◽  
Qian Dong ◽  
M. A. Mercado Sanchez ◽  
Guo-Hua Sun ◽  
Shi-Hai Dong
Keyword(s):  
Werner State ◽  
Entanglement Property ◽  
Accelerated Frames

CONTROLLED AND REMOTE IMPLEMENTATION OF A SPLIT QUANTUM ROTATION AND SENDER-ENCODED SECRET SHARING

2010 ◽  
Vol 24 (04n05) ◽  
pp. 431-437 ◽  
Author(s):  
LIBING CHEN ◽  
YUHUA LIU ◽  
HONG LU
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
Quantum Network ◽  
Entanglement Property ◽  
Theoretical Scheme ◽  
Einstein Podolsky Rosen ◽  
Unit Probability

A quantum rotation can be divided into M pieces and teleported from a sender onto M distant receivers via the control of N agents in a quantum network. We utilize the entanglement property of a (2M + N + 1)-qubit Einstein–Podolsky–Rosen (EPR) — Greenberger–Horne–Zeilinger (GHZ) state to design a theoretical scheme for implementing these rotations remotely with unit fidelity and unit probability. The feature of the scheme is that, apart from a sender and M receivers, N agents are included in the process as controllers. Should any one of the N agents not cooperate, the receivers could not gain the original rotations. This scheme can be used to sender-encoded quantum secret sharing. It definitely has the strong security.

Accelerated frames and galactic rotation curves

2019 ◽  
Vol 34 (27) ◽  
pp. 1950218
Author(s):  
S. C. Ulhoa ◽  
F. L. Carneiro
Keyword(s):  
Experimental Data ◽  
General Relativity ◽  
Dark Matter ◽  
Reference Frame ◽  
Rotation Curve ◽  
Reference Frames ◽  
Galactic Rotation ◽  
Inertial Reference Frame ◽  
Galactic Rotation Curve ◽  
Accelerated Frames

In this paper, the galactic rotation curve is analyzed as an effect of an accelerated reference frame. Such a rotation curve was the first evidence for the so-called dark matter. We show another possibility for this experimental data: non-inertial reference frame can fit the experimental curve. We also show that general relativity is not enough to completely explain that which encouraged alternatives paths such as the MOND approach. The accelerated reference frames hypothesis is well-suited to deal with the rotation curve of galaxies and perhaps has some role to play concerning other evidences for dark matter.

Entanglement measures of a new type pseudo-pure state in accelerated frames

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Qian Dong ◽  
Ariadna J. Torres-Arenas ◽  
Guo-Hua Sun ◽  
Wen-Chao Qiang ◽  
Shi-Hai Dong
Keyword(s):  
Pure State ◽  
Entanglement Measures ◽  
New Type ◽  
Accelerated Frames

100 Years of Gravity and Accelerated Frames

10.1142/5829 ◽  
2005 ◽  
Author(s):  
Jong-Ping Hsu ◽  
Dana Fine
Keyword(s):  
Accelerated Frames

MULTIPLE CONCURRENCE OF MULTI-PARTITE QUANTUM SYSTEM

2010 ◽  
Vol 08 (07) ◽  
pp. 1169-1177 ◽  
Author(s):  
HUA WU ◽  
XIN ZHAO ◽  
YAN-SONG LI ◽  
GUI-LU LONG
Keyword(s):  
Quantum System ◽  
Pure State ◽  
Arbitrary Number ◽  
Cluster State ◽  
Ghz State ◽  
W State ◽  
Entanglement Property ◽  
Analytical Results ◽  
Global Entanglement ◽  
Number Of Particles

We propose a new way of description of the global entanglement property of a multi-partite pure state quantum system. Based on the idea of bipartite concurrence, by dividing the multi-partite quantum system into two subsystems, a combination of all the bipartite concurrences of a multi-partite quantum system is used to describe the entanglement property of the multi-partite system. We derive the analytical results for GHZ-state, W-state with arbitrary number of qubits, and cluster state with the number of particles no greater than 6.

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