Results 21 to 30 of about 23,192 (302)
Simple factorization of unitary transformations [PDF]
, 2018 We demonstrate a method for general linear optical networks that allows one to factorize any SU($n$) matrix in terms of two SU($n-1)$ blocks coupled by an SU(2) entangling beam splitter.
de Guise, Hubert +2 more
core +3 more sources
Quantum teleportation of electrons in quantum wires with surface acoustic waves [PDF]
Physical Review B, 2010 We propose and numerically simulate a semiconductor device based on coupled quantum wires, suitable for deterministic quantum teleportation of electrons trapped in the minima of surface acoustic waves.We exploit a network of interacting semiconductor quantum wires able to provide the universal set of gates for quantum information processing, with the ...
Buscemi F, P Bordone, A Bertoni
openaire +3 more sources
Circuit quantum acoustodynamics with surface acoustic waves [PDF]
Nature Communications, 2017 AbstractThe experimental investigation of quantum devices incorporating mechanical resonators has opened up new frontiers in the study of quantum mechanics at a macroscopic level. It has recently been shown that surface acoustic waves (SAWs) can be piezoelectrically coupled to superconducting qubits, and confined in high-quality Fabry–Perot cavities in
Riccardo Manenti +7 more
openaire +5 more sources
Time Reversal Mirror and Perfect Inverse Filter in a Microscopic Model for Sound Propagation [PDF]
, 2007 Time reversal of quantum dynamics can be achieved by a global change of the Hamiltonian sign (a hasty Loschmidt daemon), as in the Loschmidt Echo experiments in NMR, or by a local but persistent procedure (a stubborn daemon) as in the Time Reversal ...
Calvo +11 more
core +3 more sources
Control of coherent backscattering by breaking optical reciprocity [PDF]
, 2015 Reciprocity is a universal principle that has a profound impact on many areas of physics. A fundamental phenomenon in condensed-matter physics, optical physics and acoustics, arising from reciprocity, is the constructive interference of quantum or ...
Bromberg, Y. +3 more
core +1 more source
Quantum effects in acoustic black holes: The backreaction [PDF]
Physical Review D, 2005 We investigate the backreaction equations for an acoustic black hole formed in a Laval nozzle under the assumption that the motion of the fluid is one-dimensional. The solution in the near-horizon region shows that as phonons are (thermally) radiated the sonic horizon shrinks and the temperature decreases.
BALBINOT, ROBERTO +2 more
openaire +3 more sources
Quantum control of surface acoustic-wave phonons [PDF]
Nature, 2018 The superposition of quantum states is one of the hallmarks of quantum physics, and clear demonstrations of superposition have been achieved in a number of quantum systems. However, mechanical systems have remained a challenge, with only indirect demonstrations of mechanical state superpositions, in spite of the intellectual appeal and technical ...
B. H. November +21 more
openaire +4 more sources
Surface acoustic wave resonators on thin film piezoelectric substrates in the quantum regime
Materials for Quantum Technology, 2023 Lithium niobate (LNO) is a well established material for surface acoustic wave (SAW) devices including resonators, delay lines and filters. Recently, multi-layer substrates based on LNO thin films have become commercially available.
Thomas Luschmann +8 more
doaj +1 more source
Extremely Low Loss Phonon-Trapping Cryogenic Acoustic Cavities for Future Physical Experiments [PDF]
, 2013 Low loss Bulk Acoustic Wave devices are considered from the point of view of the solid state approach as phonon-confining cavities. We demonstrate effective design of such acoustic cavities with phonon-trapping techniques exhibiting extremely high ...
Abbé, Ph. +5 more
core +4 more sources
Acoustic edge magnetoplasmons and the quantum Hall effect [PDF]
Low Temperature Physics, 2017 The nonequilibrium properties of integer channels that affect the magnetoplasma dynamics of degenerate, regularly inhomogeneous 2D electron systems under integral quantum Hall conditions are discussed. It is shown that the presence of an integer strip near the perimeter of a 2D electron system with a “soft” electron density profile should quench some ...
V. B. Shikin, S. Nazin
openaire +2 more sources