Scheme for preparation of the W-state by using linear optical elements

2003 ◽  
Vol 5 (3) ◽  
pp. 208-210 ◽  
Author(s):  
Guo-Yong Xiang ◽  
Yong-Sheng Zhang ◽  
Jian Li ◽  
Guang-Can Guo
Keyword(s):  
W State ◽  
Optical Elements ◽  
Linear Optical ◽  
Linear Optical Elements

LINEAR OPTICAL PROTOCOL FOR GENERATION OF W STATE WITHIN A NETWORK

2010 ◽  
Vol 08 (07) ◽  
pp. 1199-1206 ◽  
Author(s):  
PEI-MIN LU ◽  
YAN XIA ◽  
JIE SONG ◽  
HE-SHAN SONG
Keyword(s):  
Single Photon ◽  
W State ◽  
Entangled State ◽  
Photon Polarization ◽  
Photon Detectors ◽  
Optical Elements ◽  
Classical Communication ◽  
Linear Optical ◽  
Linear Optical Elements

We demonstrate a linear optical protocol to generate W state in terms of optical elements within a network. The proposed setup involves simple linear optical elements, N-photon polarization entangled state, and conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states. We show that with local operations, single-photon measurement, and one way classical communication, the protocol can be successfully realized with a certain probability.

SCHEME FOR TELECLONING AN IONIC STATE WITHOUT JOINT MEASUREMENT VIA LINEAR OPTICS

2008 ◽  
Vol 06 (04) ◽  
pp. 929-934 ◽  
Author(s):  
FEI YAN ◽  
MING YANG ◽  
ZHUO-LIANG CAO
Keyword(s):  
Quantum Channel ◽  
W State ◽  
Distinct Advantage ◽  
Linear Optics ◽  
Joint Measurement ◽  
Optical Elements ◽  
Ionic State ◽  
Linear Optical ◽  
Linear Optical Elements

We present a protocol for telecloning an ionic state to M distant users by using linear optical elements. The quantum channel used here is a (M + 1)-particle W state. The most distinct advantage of the current scheme is that it does not need a joint measurement required by the previous telecloning schemes.

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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