scholarly journals Quantum teleportation with a single-photon wave packet

2006 ◽  
Vol 35 (1) ◽  
pp. 47-52
Author(s):  
S. N. Molotkov
Keyword(s):  
Wave Packet ◽  
Quantum Teleportation ◽  
Single Photon

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.

CONTROLLED TELEPORTATION OF ELECTRON SPIN STATE IN QUANTUM DOT VIA SINGLE PHOTON

2008 ◽  
Vol 06 (03) ◽  
pp. 553-560
Author(s):  
YAN-WEI WANG ◽  
MING-FENG WANG ◽  
YI-ZHUANG ZHENG
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Electron Spin ◽  
Spin State ◽  
Faraday Rotation ◽  
Quantum Teleportation ◽  
Single Photon ◽  
Controlled Teleportation ◽  
Controlled Quantum Teleportation ◽  
Qubit System

A controlled quantum teleportation scheme of electron spin state in a quantum dot is proposed. With the entanglement generating through the interaction between the quantum dots in microcavities and a single photon, the controlled teleportation can be implemented using Faraday rotation and single photon measurements. The scheme can be easily generalized to multi-qubit system.

scholarly journals Eternally non-Markovian dynamics of a qubit interacting with a single-photon wavepacket

2021 ◽  
Author(s):  
Anita Dabrowska ◽  
Dariusz Chruscinski ◽  
Sagnik Chakraborty ◽  
Gniewomir Sarbicki
Keyword(s):  
Characteristic Feature ◽  
Wave Packet ◽  
Detailed Analysis ◽  
Single Photon ◽  
Level System ◽  
Resonant Case ◽  
Temporal Correlations ◽  
Input Field ◽  
Markovian Dynamics ◽  
Local Generator

Abstract An evolution of a two-level system (qubit) interacting with a single-photon wave packet is analyzed. It is shown that a hierarchy of master equations gives rise to phase covariant qubit evolution. The temporal correlations in the input field induce nontrivial memory effects for the evolution of a qubit. It is shown that in the resonant case whenever time-local generator is regular (does not display singularities) the qubit evolution never displays information backflow. However, in general the generator might be highly singular leading to intricate non-Markovian effects. A detailed analysis of the exponential profile is provided which allows to illustrate all characteristic feature of the qubit evolution.

Single-photon wave-packet engineering using nonlinear optical downconversion

2003 ◽  
Author(s):  
M. G. Raymer ◽  
J. Noh ◽  
I. A. Walmsley ◽  
K. Banaszek
Keyword(s):  
Wave Packet ◽  
Nonlinear Optical ◽  
Single Photon

Vacuum Suppression in Gain-tuned Continuous-Variable Quantum Teleportation of a Single Photon by Conditioning on Sender

2014 ◽  
Author(s):  
Maria Fuwa ◽  
Shunsuke Toba ◽  
Shuntaro Takeda ◽  
Petr Marek ◽  
Ladislav Mišta ◽  
...  
Keyword(s):  
Quantum Teleportation ◽  
Single Photon ◽  
Continuous Variable
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