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Measurement-Device-Independent Quantum Key Distribution over 200 km
Measurement-Device-Independent Quantum Key Distribution
2016/1/22
Measurement-device-independent quantum key distribution (MDIQKD) protocol is immune to all attacks on detection and guarantees the information-theoretical security even with imperfect single-photon de...
On Measurement and Computation
Quantum Computation Physical Computation computational complexity
2011/8/4
Abstract: Inspired by the work of Feynman, Deutsch, We formally propose the theory of physical computability and accordingly, the physical complexity theory. To achieve this, a framework that can eval...
Non-adaptive Measurement-based Quantum Computation and Multi-party Bell Inequalities
Non-adaptive Measurement-based Quantum Computation Multi-party Bell Inequalities
2010/10/21
Quantum correlations exhibit behaviour that cannot be resolved with a local hidden variable picture of the world. In quantum information, they are also used as resources for information processing tas...
Precision measurement of the 5 2S1/2 - 4 2D5/2 quadrupole transition isotope shift between 88Sr+ and 86Sr+
Precision measurement 88Sr+ 86Sr+
2010/10/21
We have measured the isotope shift of the narrow quadrupole-allowed 52S1=2 - 42D5=2 transition
in 86Sr+ relative to the most abundant isotope 88Sr+. This was accomplished using high-resolution laser ...
Sensitivity to measurement perturbation of single atom dynamics in cavity QED
Sensitivity measurement perturbation single atom dynamics cavity QED
2010/10/15
We consider continuous observation of the nonlinear dynamics of single atom trapped in an optical cavity by a standing wave with intensity modulation.The motion of the atom changes the phase of the fi...
An Approach to Measurement by Quantum-Stochastic-Parameter Averaged Bohmian Mechanics
An Approach Measurement Quantum-Stochastic-Parameter Averaged Bohmian Mechanics
2010/10/15
A coarse-grained quantum operator technique is used along with the formalism of Bohmian mechanics endowed with stochastic character at the quantum level in order to address some central issues in the ...