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Phonon nonlinearities play an important role in hybrid quantum networks and on-chip quantum devices. We investigate the phonon statistics of a mechanical oscillator in hybrid systems composed of an atom and one or two standard…

Quantum Physics · Physics 2018-06-12 Mei Wang , Xin-You Lü , Adam Miranowicz , Tai-Shuang Yin , Ying Wu , Franco Nori

Electron spin relaxation induced by phonon-mediated s-d exchange interaction in a II-VI diluted magnetic semiconductor quantum dot is investigated theoretically. The electron-acoustic phonon interaction due to piezoelectric coupling and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 W. Yang , K. Chang

The formation of the two: injected ("coherent") and "thermally" excited, different in energies magnon subsystems and the influence of its interaction with phonons and between on drag effect under spin Seebeck effect conditions in the…

Other Condensed Matter · Physics 2017-06-08 I. I. Lyapilin , M. S. Okorokov

We address a scheme to enhance the quantum correlations in cavity opto-magnomechanical system by using the coherent feedback loop in the presence of magnon squeezing. The proposed coherent feedback-control allows a significant enhancement…

Quantum Physics · Physics 2023-02-21 M. Amazioug , S. K. Singh , B. Teklu , M. Asjad

The potential of photon-magnon hybrid systems as building blocks for quantum information science has been widely demonstrated, and it is still the focus of much research. We leverage the strengths of this unique heterogeneous physical…

Quantum Physics · Physics 2020-10-26 N. Crescini , C. Braggio , G. Carugno , R. Di Vora , A. Ortolan , G. Ruoso

Phonons and magnons are engineered by periodic potential landscapes in phononic and magnonic crystals, and their combined studies may enable valley phonon transport tunable by the magnetic field. Through nonreciprocal surface acoustic wave…

Mesoscale and Nanoscale Physics · Physics 2023-07-13 Liyang Liao , Jorge Puebla , Kei Yamamoto , Junyeon Kim , Sadamichi Meakawa , Yunyoung Hwang , You Ba , Yoshichika Otani

Spin-phonon interactions are one of the mechanisms limiting the lifetime of spin qubits made in semiconductor quantum dots. At variance with other mechanisms such as charge noise, phonons are intrinsic to the device and can hardly be…

Mesoscale and Nanoscale Physics · Physics 2020-08-19 Jing Li , Benjamin Venitucci , Yann-Michel Niquet

Employing the concept of two-mode squeezed states from quantum optics, we demonstrate a revealing physical picture for the antiferromagnetic ground state and excitations. Superimposed on a N{\'e}el ordered configuration, a spin-flip…

Mesoscale and Nanoscale Physics · Physics 2019-11-07 Akashdeep Kamra , Even Thingstad , Gianluca Rastelli , Rembert A. Duine , Arne Brataas , Wolfgang Belzig , Asle Sudbø

We predict a set of unusual quantum acoustic phenomena resulting from sound-matter interactions in a fully tunable solid-state platform, in which an array of solid-state spins in diamond are coupled to quantized acoustic waves in a…

Quantum Physics · Physics 2021-05-26 Xing-Liang Dong , Peng-Bo Li , Tao Liu , Franco Nori

We propose a scheme for generating and controlling entangled coherent states (ECS) of magnons, i.e. the quanta of the collective spin excitations in magnetic systems, or phonons in mechanical resonators. The proposed hybrid circuit…

Quantum Physics · Physics 2023-09-29 Marios Kounalakis , Silvia Viola Kusminskiy , Yaroslav M. Blanter

A stable and high-quality single-magnon state is desired by the single-magnon source for quantum information application with a macroscopic spin system. We consider a hybrid system where a magnon mode is directly coupled to a nonresonant…

Quantum Physics · Physics 2024-07-26 Zhu-yao Jin , Jun Jing

After a brief review of stochastic limit approximation with spin-boson system from physical points of view, amplification phenomenon-stochastic resonance phenomenon-in driven spin-boson system is observed which is helped by the quantum…

Quantum Physics · Physics 2007-05-23 Kentaro Imafuku , Kazuya Yuasa , Ichiro Ohba

The paper presents our verification of induction of the superconducting state on a square lattice by the linear electron-phonon interaction for values of the unbalance parameter ($\gamma=\lambda_{D}/\lambda_{ND}$) less than…

Superconductivity · Physics 2019-09-26 K. A. Szewczyk , M. W. Jarosik , A. P. Durajski , R. Szczȩśniak

Modeling spin-wave (magnon) dynamics in novel materials is important to advance spintronics and spin-based quantum technologies. The interactions between magnons and lattice vibrations (phonons) limit the length scale for magnon transport.…

In solid state physics, giant magnetoresistance is the large change in electrical resistance due to an external magnetic field. Here we show that giant magnetoresistance is possible in a spin chain composed of weakly interacting layers of…

Strongly Correlated Electrons · Physics 2021-03-18 Kasper Poulsen , Nikolaj T. Zinner

Quantum information storage using charge-neutral quasiparticles are expected to play a crucial role in the future of quantum computers. In this regard, magnons or collective spin-wave excitations in solid-state materials are promising…

Strongly Correlated Electrons · Physics 2017-10-20 S. A. Owerre , J. Nsofini

We investigate the inelastic spin-flip rate for electrons in a quantum dot due to their contact hyperfine interaction with lattice nuclei. In contrast to other works, we obtain a spin-phonon coupling term from this interaction by taking…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Veniamin A. Abalmassov , Florian Marquardt

Quantum wires occupy a unique status among the semiconducting nanostructures with reduced dimensionality -- no other system seems to have engaged researchers with as many appealing features to pursue. This paper aims at a core issue related…

Mesoscale and Nanoscale Physics · Physics 2020-01-01 Manvir S. Kushwaha

We describe a novel state of electrons and phonons arising in semiconductor superlattices (SSL) due to strong electron-phonon interactions. These states are characterized by a localization of phonons and a self-trapping or locking of…

Condensed Matter · Physics 2009-10-31 F. V. Kusmartsev , H. S. Dhillon

The time dynamics of the energy flow from electronic to lattice degrees of freedom in pump-probe setups could be strongly affected by the presence of a hot-phonon bottleneck, which can sustain longer coherence of the optically excited…

Materials Science · Physics 2022-05-25 E. Cappelluti , D. Novko
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