Topological protection versus degree of entanglement of two-photon edge states

2021 ◽  
Author(s):  
Konrad Tschernig ◽  
Kurt Busch ◽  
Armando Perez-Leija
Keyword(s):  
Edge States ◽  
Two Photon ◽  
Degree Of Entanglement

High degree of entanglement and nonlocality of a two-photon state generated at 532 nm

2011 ◽  
Vol 199 (1) ◽  
pp. 111-125 ◽  
Author(s):  
F. Sciarrino ◽  
G. Vallone ◽  
G. Milani ◽  
A. Avella ◽  
J. Galinis ◽  
...  
Keyword(s):  
Photon State ◽  
Two Photon ◽  
High Degree ◽  
532 Nm ◽  
Degree Of Entanglement

scholarly journals INFLUENCE OF DIPOLE-DIPOLE INTERACTION ON DYNAMICS OF ENTANGLED GREENBERGER — HORNE — ZEILINGER STATES FOR TWO QUBITS

2017 ◽  
Vol 19 (9.1) ◽  
pp. 112-121
Author(s):  
E.K. Bashkirov ◽  
T.A. Puzyrnaya
Keyword(s):  
Sudden Death ◽  
Maximum Degree ◽  
Dipole Interaction ◽  
Entanglement Sudden Death ◽  
Ghz States ◽  
Two Photon ◽  
Degree Of Entanglement

The influence of dipole-dipole interaction on dynamics of three- and four-particle GHZ states for two Д-type superconducting flux cubits interacting with one or two different electronic LC cavities via two-photon processes has been investigated. The results show that dipole-dipole interaction does not lead to the disappearance of the effect of entanglement sudden death and does not change the maximum 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.

Entanglement limits in topological protection of two-photon edge-edge states

2020 ◽  
Author(s):  
Konrad Tschernig ◽  
Álvaro Jimenez-Galan ◽  
Demetrios N. Christodoulides ◽  
Mikhail Ivanov ◽  
Kurt Busch ◽  
...  
Keyword(s):  
Edge States ◽  
Two Photon

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

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
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