scholarly journals 128 Identical Quantum Sources Integrated on a Single Silica Chip

2021 ◽  
Vol 16 (5) ◽  
Author(s):  
Ruo-Jing Ren ◽  
Jun Gao ◽  
Wen-Hao Zhou ◽  
Zhi-Qiang Jiao ◽  
Lu-Feng Qiao ◽  
...  
Keyword(s):  
Identical Quantum

scholarly journals Time evolution of decay of two identical quantum particles

2011 ◽  
Vol 84 (3) ◽  
Author(s):  
Gastón García-Calderón ◽  
Luis Guillermo Mendoza-Luna
Keyword(s):  
Time Evolution ◽  
Quantum Particles ◽  
Identical Quantum

Dual-Wavelength Distributed Feedback Laser for CWDM Based on Non-Identical Quantum Well

2006 ◽  
Vol 23 (1) ◽  
pp. 126-128 ◽  
Author(s):  
Xie Hong-Yun ◽  
Pan Jiao-Qing ◽  
Zhao Ling-Juan ◽  
Zhu Hong-Liang ◽  
Wang Lu-Feng ◽  
...  
Keyword(s):  
Quantum Well ◽  
Distributed Feedback ◽  
Dual Wavelength ◽  
Distributed Feedback Laser ◽  
Identical Quantum

scholarly journals From a Quantum Paradox to Counterportation

2021 ◽  
Author(s):  
Hatim Salih
Keyword(s):  
Quantum Electrodynamics ◽  
Physical Reality ◽  
Cavity Quantum Electrodynamics ◽  
Classical Communication ◽  
Free Communication ◽  
Zeno Effect ◽  
Measurement Framework ◽  
Simple Question ◽  
Identical Quantum ◽  
Interaction Free Measurement

Abstract We uncover a new quantum paradox, where a simple question about two identical quantum systems reveals unsettlingly paradoxical answers when weak measurements are considered. Our resolution of the paradox, from within the weak measurement framework, amounts to a demonstration of exchange-free communication for the generalised protocol for sending an unknown qubit without any particles travelling between the communicating parties, i.e. counterfactually. The paradox and its resolution are reproduced from a consistent-histories viewpoint. We go on to propose a novel, experimentally feasible implementation of this counterfactual disembodied transport that we call counterportation, based on cavity quantum electrodynamics, estimating resources for beating the no-cloning fidelity limit---except that unlike teleportation no previously-shared entanglement nor classical communication are required. Our approach is several orders of magnitude more efficient in terms of physical resources than previously proposed techniques, while being remarkably tolerant to device imperfections, paving the way for an experimental demonstration. Surprisingly, while counterfactual communication is intuitively explained in terms of interaction-free measurement and the Zeno effect, we show based on our proposed scheme that neither is necessary, with implications in support of an underlying physical reality.

scholarly journals Classical capacities of memoryless but not identical quantum channels

2021 ◽  
pp. 2150012
Author(s):  
Samad Khabbazi Oskouei ◽  
Stefano Mancini
Keyword(s):  
Quantum Channels ◽  
Limiting Behavior ◽  
Identical Quantum

We study quantum channels that vary on time in a deterministic way, that is, they change in an independent but not identical way from one to another use. We derive coding theorems for the entanglement-assisted and unassisted classical capacities. We then specialize the theory to lossy bosonic quantum channels and show the existence of contrasting examples where capacities can or cannot be drawn from the limiting behavior of the lossy parameter.

scholarly journals Engineering statistical transmutation of identical quantum particles

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Simone Barbarino ◽  
Rosario Fazio ◽  
Vlatko Vedral ◽  
Yuval Gefen
Keyword(s):  
Quantum Particles ◽  
Identical Quantum
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