Non-Gaussian operation based on photon subtraction using a photon-number-resolving detector at a telecommunications wavelength

2010 ◽  
Vol 4 (9) ◽  
pp. 655-660 ◽  
Author(s):  
Naoto Namekata ◽  
Yuta Takahashi ◽  
Go Fujii ◽  
Daiji Fukuda ◽  
Sunao Kurimura ◽  
...  
Keyword(s):  
Photon Number ◽  
Photon Subtraction ◽  
Non Gaussian

scholarly journals Non-Gaussian postselection and virtual photon subtraction in continuous-variable quantum key distribution

2016 ◽  
Vol 93 (1) ◽  
Author(s):  
Zhengyu Li ◽  
Yichen Zhang ◽  
Xiangyu Wang ◽  
Bingjie Xu ◽  
Xiang Peng ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Virtual Photon ◽  
Key Distribution ◽  
Continuous Variable ◽  
Photon Subtraction ◽  
Non Gaussian

scholarly journals Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Stefano Olivares ◽  
Alessia Allevi ◽  
Maria Bondani
Keyword(s):  
Coherent State ◽  
Direct Detection ◽  
The State ◽  
Gaussian State ◽  
Classical State ◽  
Phase Sensitive ◽  
Photon Subtraction ◽  
Non Gaussian

AbstractMultiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive) Glauber-Sudarshan Prepresentation. We theoretically and experimentally demonstrate that, despite its simplicity, this class of conditional states cannot be fully characterized by direct detection of photon numbers. In particular, the non-Gaussianity of the state is a characteristics that must be assessed by phase-sensitive measurements. We also show that the non-Gaussianity of conditional states can be manipulated by choosing suitable conditioning values and composition of phase-averaged states.

scholarly journals Photon-number discrimination without a photon counter and its application to reconstructing non-Gaussian states

2011 ◽  
Vol 84 (5) ◽  
Author(s):  
H. M. Chrzanowski ◽  
J. Bernu ◽  
B. M. Sparkes ◽  
B. Hage ◽  
A. P. Lund ◽  
...  
Keyword(s):  
Photon Number ◽  
Photon Counter ◽  
Gaussian States ◽  
Number Discrimination ◽  
Non Gaussian

scholarly journals ENTANGLEMENT CRITERION FOR COHERENT SUBTRACTION AND COHERENT ADDITION OF BIPARTITE CONTINUOUS VARIABLE STATES

2013 ◽  
Vol 11 (06) ◽  
pp. 1350060
Author(s):  
LI-ZHEN JIANG ◽  
XIAO-YU CHEN ◽  
TIAN-YU YE ◽  
FANG-YU HONG ◽  
LIANG-NENG WU
Keyword(s):  
Thermal Noise ◽  
Photon Number ◽  
Sufficient Conditions ◽  
Continuous Variable ◽  
Entangled State ◽  
Gaussian States ◽  
Non Gaussian ◽  
Entanglement Criterion ◽  
Entanglement Conditions ◽  
Thermal States

We study the entanglement conditions of two quite general classes of two-mode non-Gaussian states. Using computable cross norm and realignment criterion, we obtain the sufficient conditions of entanglement for coherently added or subtracted two-mode squeezed thermal states, and the sufficient condition of entanglement for any photon number entangled state (PNES) evolving in a thermal noise and amplitude damping channel.

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