scholarly journals Generation of Two-Photon States with an Arbitrary Degree of Entanglement Via Nonlinear Crystal Superlattices

2006 ◽  
Vol 97 (22) ◽  
Author(s):  
Alfred B. U’Ren ◽  
Reinhard K. Erdmann ◽  
Manuel de la Cruz-Gutierrez ◽  
Ian A. Walmsley
Keyword(s):  
Nonlinear Crystal ◽  
Arbitrary Degree ◽  
Two Photon ◽  
Photon States ◽  
Degree Of Entanglement

Features of three-photon polarization states: Entanglement and polarization

2014 ◽  
Vol 12 (07n08) ◽  
pp. 1560009 ◽  
Author(s):  
M. V. Fedorov
Keyword(s):  
Photon Polarization ◽  
Two Photon ◽  
Arbitrary Complex ◽  
Stokes Vectors ◽  
Polarization States ◽  
Photon States ◽  
Complex Coefficients ◽  
Degree Of Entanglement

In a general form, three-photon polarization states are superpositions of contributions from four three-photon polarization modes with four arbitrary complex coefficients. Entanglement of such states is defined as entanglement between their one-photon and two-photon parts. The degree of entanglement is found explicitly in terms of such entanglement quantifiers as the generalized concurrence, entropy of reduced states and the Schmidt parameter. Polarization Stokes vectors, as well as the Schmidt decompositions of three-photon states are found and discussed. Similarity and differences with respect to biphoton polarization states are discussed too.

Generation of (2 × 2) and (4 × 4) two-photon states with tunable degree of entanglement and mixedness

2004 ◽  
Vol 52 (11-12) ◽  
pp. 1102-1109 ◽  
Author(s):  
M. Barbieri ◽  
C. Cinelli ◽  
F. De Martini ◽  
P. Mataloni
Keyword(s):  
Two Photon ◽  
Photon States ◽  
Degree Of Entanglement

Teleportation of Quantum Entangled Two-Photon States in the Presence of Noise

2013 ◽  
Vol 58 (3) ◽  
pp. 268-277
Author(s):  
I.S. Dotsenko ◽  
◽  
R.S. Korobka ◽  
Keyword(s):  
Two Photon ◽  
Photon States

scholarly journals High-resolution spectral characterization of two photon states via classical measurements

2014 ◽  
Vol 8 (5) ◽  
pp. L76-L80 ◽  
Author(s):  
Andreas Eckstein ◽  
Guillaume Boucher ◽  
Aristide Lemaître ◽  
Pascal Filloux ◽  
Ivan Favero ◽  
...  
Keyword(s):  
High Resolution ◽  
Spectral Characterization ◽  
Two Photon ◽  
Photon States

Spectral tunability of two-photon states generated by spontaneous four-wave mixing: fibre tapering, temperature variation and longitudinal stress

2017 ◽  
Vol 2 (3) ◽  
pp. 034015 ◽  
Author(s):  
E Ortiz-Ricardo ◽  
C Bertoni-Ocampo ◽  
Z Ibarra-Borja ◽  
R Ramirez-Alarcon ◽  
D Cruz-Delgado ◽  
...  
Keyword(s):  
Temperature Variation ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Longitudinal Stress ◽  
Two Photon ◽  
Photon States

Semiconductor sources of two-photon states at room temperature in the telecom range

2012 ◽  
Author(s):  
A. Orieux ◽  
M. Savanier ◽  
C. E. Rodrigues de Souza ◽  
A. Andronico ◽  
A. Lemaître ◽  
...  
Keyword(s):  
Room Temperature ◽  
Two Photon ◽  
Photon States

scholarly journals Generation of Pure State Photon Triplets in the C-Band

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 775 ◽  
Author(s):  
Xi-Rong Su ◽  
Yi-Wen Huang ◽  
Tong Xiang ◽  
Yuan-Hua Li ◽  
Xian-Feng Chen
Keyword(s):  
Pure State ◽  
Schmidt Number ◽  
Second Order ◽  
Conversion Process ◽  
Gaussian Filter ◽  
Periodically Poled ◽  
Two Photon ◽  
Parametric Down Conversion ◽  
Photon States ◽  
Down Conversion

In this work, the cascaded second-order spontaneous parametric down-conversion (SPDC) is considered to produce pure state photon triplets in periodically poled lithium niobite (PPLN) doped with 5% MgO. A set of parameters are optimized through calculating the Schmidt number of two-photon states generated by each down-conversion process with different pump durations and crystal lengths. We use a Gaussian filter in part and obtain three photons with 100% purity in spectrum. We provide a feasible and unprecedented scheme to manipulate the spectrum purity of photon triplets in the communication band (C-band).

Identification of two-photon states in phthalocyanines by third harmonic generation spectroscopy

1995 ◽  
Vol 235 (5-6) ◽  
pp. 535-540 ◽  
Author(s):  
María A. Díaz-García ◽  
Fernando Agulló-López ◽  
William E. Torruellas ◽  
George I. Stegeman
Keyword(s):  
Harmonic Generation ◽  
Third Harmonic Generation ◽  
Third Harmonic ◽  
Two Photon ◽  
Photon States
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