Sudden transition of dislocation dynamics in FCC crystals at ultralow temperatures
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Plasticity"
DOI: 10.1016/j.ijplas.2021.102979
Abstract: Abstract Dislocation mobility, which is a fundamental unit of material plasticity, is determined by the predominant drag mechanism during dislocation motion. For edge dislocations in various FCC crystals, we first discover through a molecular dynamics… read more here.
Keywords: transition dislocation; fcc crystals; dislocation; dislocation dynamics ... See more keywords
Quantum control of reactions and collisions at ultralow temperatures.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Society reviews"
DOI: 10.1039/d1cs01040a
Abstract: At temperatures close to absolute zero, the molecular reactions and collisions are dominantly governed by quantum mechanics. Remarkable quantum phenomena such as quantum tunneling, quantum threshold behavior, quantum resonances, quantum interference, and quantum statistics are… read more here.
Keywords: ultralow temperatures; reactions collisions; ultracold reactions; ultracold molecules ... See more keywords
Heat transport at the nanoscale and ultralow temperatures—Implications for quantum technologies
Sign Up to like & getrecommendations! Published in 2024 at "Applied Physics Letters"
DOI: 10.1063/5.0204207
Abstract: In this Perspective, we discuss thermal imbalance and the associated electron-mediated thermal transport in quantum electronic devices at very low temperatures. We first present the theoretical approaches describing heat transport in nanoscale conductors at low… read more here.
Keywords: quantum technologies; implications quantum; heat transport; transport nanoscale ... See more keywords
Loss investigations of high-frequency lithium niobate Lamb wave resonators at ultralow temperatures
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Letters"
DOI: 10.1063/5.0290853
Abstract: Lamb wave resonators (LWRs) operating at ultralow temperatures serve as promising acoustic platforms for implementing microwave-optical transduction and radio frequency (RF) front-ends in aerospace communications because of the exceptional electromechanical coupling (k2) and frequency scalability.… read more here.
Keywords: loss; frequency; lamb wave; ultralow temperatures ... See more keywords
Universality and threshold laws for collision lifetimes at ultralow temperatures
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.063313
Abstract: While collision lifetimes are a fundamental property of few-body scattering events, their behavior at ultralow temperatures is not completely understood. We derive a general expression for the Smith lifetime Q-matrix using multichannel quantum defect theory,… read more here.
Keywords: laws collision; universality threshold; threshold laws; collision lifetimes ... See more keywords