scholarly journals Impossibility to produce arbitrary non-Gaussian states using zero-mean Gaussian states and partial photon number resolving detection

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Christos N. Gagatsos ◽  
Saikat Guha
Keyword(s):  
Photon Number ◽  
Gaussian States ◽  
Non Gaussian

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.

Generation of sub-Poissonian non-Gaussian states from multimode twin beams by photon-number-resolving detectors

2014 ◽  
Vol 12 (02) ◽  
pp. 1461017 ◽  
Author(s):  
Marco Lamperti ◽  
Alessia Allevi ◽  
Maria Bondani ◽  
Radek Machulka ◽  
Václav Michálek ◽  
...  
Keyword(s):  
Photon Number ◽  
Gaussian States ◽  
Twin Beam ◽  
Non Gaussian

We generate sub-Poissonian non-Gaussian conditional states from pulsed multimode twin beams (TWBs) by measuring with photon-number-resolving detectors. Links among twin-beam non-classicality and the properties of the conditional states are discussed.

Generation of sub-Poissonian non-Gaussian states from multimode twin beams by photon-number-resolving detectors

2014 ◽  
Author(s):  
Marco Lamperti ◽  
Alessia Allevi ◽  
Maria Bondani ◽  
Radek Machulka ◽  
Václav Michálek ◽  
...  
Keyword(s):  
Photon Number ◽  
Gaussian States ◽  
Non Gaussian

Teleportation improvement by noiseless linear amplification

2019 ◽  
Vol 19 (11&12) ◽  
pp. 935-951
Author(s):  
Hamza Adnane ◽  
Matteo G.A. Paris
Keyword(s):  
Coherent States ◽  
Large Range ◽  
Low Energy ◽  
Entangled State ◽  
Continuous Variables ◽  
Linear Amplification ◽  
Gaussian States ◽  
Linear Amplifier ◽  
Twin Beam ◽  
Non Gaussian

We address de-Gaussification of continuous variables Gaussian states by optimal non-deterministic noiseless linear amplifier (NLA) and analyze in details the properties of the amplified states. In particular, we investigate the entanglement content and the non-Gaussian character for the class of non-Gaussian entangled state obtained by using NL-amplification of two-mode squeezed vacua (twin-beam, TWB). We show that entanglement always increases, whereas improved EPR correlations are observed only when the input TWB has low energy. We then examine a Braunstein-Kimble-like protocol for the teleportation of coherent states, and compare the performances of TWB-based teleprotation with those obtained using NL-amplified resources. We show that teleportation fidelity and security may be improved for a large range of NLA parameters (gain and threshold).

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