scholarly journals Practical scheme for non-postselection entanglement concentration using linear optical elements

2007 ◽  
Vol 369 (4) ◽  
pp. 280-284 ◽  
Author(s):  
Myung-Joong Hwang ◽  
Yoon-Ho Kim
Keyword(s):  
Entanglement Concentration ◽  
Optical Elements ◽  
Linear Optical ◽  
Linear Optical Elements ◽  
Practical Scheme

Entanglement concentration of individual photon pairs via linear optical logic

2004 ◽  
Vol 4 (3) ◽  
pp. 196-200
Author(s):  
C.-W. Zhang
Keyword(s):  
Entanglement Concentration ◽  
Entangled State ◽  
Optical Logic ◽  
Optical Technology ◽  
Optical Elements ◽  
Photon Pairs ◽  
Individual Photon ◽  
Linear Optical ◽  
Linear Optical Elements

We propose a scheme for concentrating nonmaximally pure and mixed polarization-entangled state of individual photon pairs. The scheme uses only simple linear optical elements and may be feasible within current optical technology.

ontrolled implementation of two-photon controlled phase gate within a network

2010 ◽  
Vol 10 (9&10) ◽  
pp. 821-828
Author(s):  
Yan Xia ◽  
Jie Song ◽  
Zhen-Biao Yang ◽  
Shi-Biao Zheng
Keyword(s):  
Quantum Computer ◽  
Photon Detectors ◽  
Optical Elements ◽  
Experimental Realization ◽  
Two Photon ◽  
Phase Gate ◽  
Controlled Phase Gate ◽  
Linear Optical ◽  
Polarized Photons ◽  
Linear Optical Elements

We propose a protocol to controlled implement the two-photon controlled phase gate within a network by using interference of polarized photons. The realization of this protocol is appealing due to the fact that the quantum state of light is robust against the decoherence, and photons are ideal carriers for transmitting quantum information over long distances. The proposed setup involves simple linear optical elements and the conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states. This can greatly simplify the experimental realization of a linear optical quantum computer.

scholarly journals Greenberger–Horne–Zeilinger state generation with linear optical elements

2019 ◽  
Vol 18 (11) ◽  
Author(s):  
Bertúlio de Lima Bernardo ◽  
Mate Lencses ◽  
Samuraí Brito ◽  
Askery Canabarro
Keyword(s):  
Optical Elements ◽  
State Generation ◽  
Linear Optical ◽  
Linear Optical Elements

PROBABILISTIC AND CONTROLLED TELEPORTATION OF UNKNOWN IONIC STATES VIA LINEAR OPTICAL ELEMENTS

2007 ◽  
Vol 05 (03) ◽  
pp. 431-435 ◽  
Author(s):  
ZHUO-LIANG CAO ◽  
JIAN ZHOU ◽  
MING YANG
Keyword(s):  
Ghz State ◽  
Zehnder Interferometer ◽  
Controlled Teleportation ◽  
Simple Scheme ◽  
Optical Elements ◽  
Current Technology ◽  
Single Qubit ◽  
Linear Optical ◽  
Ionic States ◽  
Linear Optical Elements

We propose a simple scheme for teleporting an unknown state in a probabilistic and controlled manner via linear optical elements using a tripartite entangled GHZ state. By using a Mach–Zehnder interferometer, we realize all teleportation processes by only single-qubit measurements; thus our scheme is readily realizable within current technology.

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