scholarly journals Quantum Erasure Using Entangled Surface Acoustic Phonons

2020 ◽  
Vol 10 (2) ◽  
Author(s):  
A. Bienfait ◽  
Y. P. Zhong ◽  
H.-S. Chang ◽  
M.-H. Chou ◽  
C. R. Conner ◽  
...  
1971 ◽  
Vol 32 (C1) ◽  
pp. C1-526-C1-527 ◽  
Author(s):  
H. S. BENNETT
Keyword(s):  

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-804-C6-806
Author(s):  
V. Bortolani ◽  
F. Nizzoli ◽  
G. Santoro ◽  
A. Marvin

2019 ◽  
Vol 11 (1) ◽  
pp. 01019-1-01019-6
Author(s):  
I. V. Boyko ◽  
◽  
M. R. Petryk ◽  

2020 ◽  
Vol 6 (51) ◽  
pp. eabd4540
Author(s):  
Thomas Vasileiadis ◽  
Heng Zhang ◽  
Hai Wang ◽  
Mischa Bonn ◽  
George Fytas ◽  
...  

Telecommunication devices exploit hypersonic gigahertz acoustic phonons to mediate signal processing with microwave radiation, and charge carriers to operate various microelectronic components. Potential interactions of hypersound with charge carriers can be revealed through frequency- and momentum-resolved studies of acoustic phonons in photoexcited semiconductors. Here, we present an all-optical method for excitation and frequency-, momentum-, and space-resolved detection of gigahertz acoustic waves in a spatially confined model semiconductor. Lamb waves are excited in a bare silicon membrane using femtosecond optical pulses and detected with frequency-domain micro-Brillouin light spectroscopy. The population of photoexcited gigahertz phonons displays a hundredfold enhancement as compared with thermal equilibrium. The phonon spectra reveal Stokes–anti-Stokes asymmetry due to propagation, and strongly asymmetric Fano resonances due to coupling between the electron-hole plasma and the photoexcited phonons. This work lays the foundation for studying hypersonic signals in nonequilibrium conditions and, more generally, phonon-dependent phenomena in photoexcited nanostructures.


2021 ◽  
Vol 3 (1) ◽  
pp. 53-67
Author(s):  
Ghenadie Mardari

The phenomenon of quantum erasure exposed a remarkable ambiguity in the interpretation of quantum entanglement. On the one hand, the data is compatible with the possibility of arrow-of-time violations. On the other hand, it is also possible that temporal non-locality is an artifact of post-selection. Twenty years later, this problem can be solved with a quantum monogamy experiment, in which four entangled quanta are measured in a delayed-choice arrangement. If Bell violations can be recovered from a “monogamous” quantum system, then the arrow of time is obeyed at the quantum level.


2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Robin J. Dolleman ◽  
Gerard J. Verbiest ◽  
Yaroslav M. Blanter ◽  
Herre S. J. van der Zant ◽  
Peter G. Steeneken

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Rafael N. Gontijo ◽  
Andreij Gadelha ◽  
Orlando J. Silveira ◽  
Ricardo W. Nunes ◽  
Marcos A. Pimenta ◽  
...  

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Mamoru Endo ◽  
Shota Kimura ◽  
Shuntaro Tani ◽  
Yohei Kobayashi

AbstractMulti-gigahertz mechanical vibrations that stem from interactions between light fields and matter—known as acoustic phonons—have long been a subject of research. In recent years, specially designed functional devices have been developed to enhance the strength of the light-matter interactions because excitation of acoustic phonons using a continuous-wave laser alone is insufficient. However, the strength of the interaction cannot be controlled appropriately or instantly using these structurally-dependent enhancements. Here we show a technique to control the effective interaction strength that does not operate via the material structure in the spatial domain; instead, the method operates through the structure of the light in the time domain. The effective excitation and coherent control of acoustic phonons in a single-mode fiber using an optical frequency comb that is performed by tailoring the optical pulse train. This work represents an important step towards comb-matter interactions.


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
S. Brehm ◽  
A. V. Akimov ◽  
R. P. Campion ◽  
A. J. Kent

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