scholarly journals Beating classical imaging limits with entangled photons

2019 ◽  
Author(s):  
Ermes Toninelli ◽  
Thomas Gregory ◽  
Paul-Antoine Moreau ◽  
Miles J. Padgett
Keyword(s):  
Entangled Photons

scholarly journals Quantum dots as potential sources of strongly entangled photons: Perspectives and challenges for applications in quantum networks

2021 ◽  
Vol 118 (10) ◽  
pp. 100502
Author(s):  
Christian Schimpf ◽  
Marcus Reindl ◽  
Francesco Basso Basset ◽  
Klaus D. Jöns ◽  
Rinaldo Trotta ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Entangled Photons ◽  
Quantum Networks ◽  
Potential Sources

scholarly journals Broadband waveguide quantum memory for entangled photons

2011 ◽  
Author(s):  
E. Saglamyurek ◽  
N. Sinclair ◽  
J. Jin ◽  
J. A. Slater ◽  
D. Oblak ◽  
...  
Keyword(s):  
Quantum Memory ◽  
Entangled Photons

scholarly journals Wavelength-tunable entangled photons from silicon-integrated III–V quantum dots

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Yan Chen ◽  
Jiaxiang Zhang ◽  
Michael Zopf ◽  
Kyubong Jung ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Entangled Photons ◽  
Wavelength Tunable

scholarly journals A single-crystal source of path-polarization entangled photons at non-degenerate wavelengths

2008 ◽  
Vol 16 (13) ◽  
pp. 9701 ◽  
Author(s):  
S. Sauge ◽  
M. Swillo ◽  
M. Tengner ◽  
A. Karlsson
Keyword(s):  
Single Crystal ◽  
Entangled Photons

Quantum cryptography: Theoretical protocols for quantum key distribution and tests of selected commercial QKD systems in commercial fiber networks

2016 ◽  
Vol 14 (02) ◽  
pp. 1630002
Author(s):  
Monika Jacak ◽  
Janusz Jacak ◽  
Piotr Jóźwiak ◽  
Ireneusz Jóźwiak
Keyword(s):  
Quantum Cryptography ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Current Status ◽  
Entangled Photons ◽  
Fiber Networks ◽  
System Improvement ◽  
Metropolitan Networks

The overview of the current status of quantum cryptography is given in regard to quantum key distribution (QKD) protocols, implemented both on nonentangled and entangled flying qubits. Two commercial R&D platforms of QKD systems are described (the Clavis II platform by idQuantique implemented on nonentangled photons and the EPR S405 Quelle platform by AIT based on entangled photons) and tested for feasibility of their usage in commercial TELECOM fiber metropolitan networks. The comparison of systems efficiency, stability and resistivity against noise and hacker attacks is given with some suggestion toward system improvement, along with assessment of two models of QKD.

Restoring dispersion cancellation for entangled photons produced by ultrashort pulses

2000 ◽  
Vol 62 (5) ◽  
Author(s):  
Reinhard Erdmann ◽  
David Branning ◽  
Warren Grice ◽  
I. A. Walmsley
Keyword(s):  
Ultrashort Pulses ◽  
Entangled Photons

Cryptanalysis of a Practical Quantum Key Distribution with Polarization-Entangled Photons

2005 ◽  
Vol 5 (3) ◽  
pp. 181-186
Author(s):  
Th. Beth ◽  
J. Muller-Quade ◽  
R. Steinwandt
Keyword(s):  
Quantum Cryptography ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Key Exchange ◽  
Authentication Scheme ◽  
Entangled Photons ◽  
Key Exchange Protocol

Recently, a quantum key exchange protocol has been described\cite{PFLM04}, which served as basis for securing an actual bank transaction by means of quantum cryptography \cite{ZVS04}. The authentication scheme used to this aim has been proposed by Peev et al. \cite{PML04}. Here we show, that this authentication is insecure in the sense that an attacker can provoke a situation where initiator and responder of a key exchange end up with different keys. Moreover, it may happen that an attacker can decrypt a part of the plaintext protected with the derived encryption key.

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