Results 81 to 90 of about 1,368,587 (205)
A quantum heat machine from fast optomechanics
New Journal of Physics, 2020 We consider a thermodynamic machine in which the working fluid is a quantized harmonic oscillator that is controlled on timescales that are much faster than the oscillator period.
James S Bennett +3 more
doaj +1 more source
H-Theorem in an Isolated Quantum Harmonic Oscillator. [PDF]
Entropy (Basel), 2022 Hsueh CH, Cheng CH, Horng TL, Wu WC.
europepmc +1 more source
NanophotonicsClassical coupled harmonic oscillator models are capable of describing the optical and infrared response of nanophotonic systems where a cavity photon couples to dipolar matter excitations. The distinct forms of coupling adopted in these classical models
Muniain Unai +4 more
doaj +1 more source
Journal of High Energy PhysicsWe provide a formulation of quantum mechanics based on the cohomology of the Batalin-Vilkovisky (BV) algebra. Focusing on quantum-mechanical systems without gauge symmetry we introduce a homotopy retract from the chain complex of the harmonic oscillator ...
Christoph Chiaffrino +2 more
doaj +1 more source
Superoscillations in the Quantum Harmonic Oscillator [PDF]
, 2015 A superoscillatory function is one that oscillates faster than its fastest Fourier component - A phenomenon created by subtle interference between Fourier components.
Bussell, Max
core
Advanced Physics Research, EarlyView.A two‐band Ginzburg–Landau model was applied to investigate the superconducting properties of and. Analytical expressions for critical magnetic fields, coherence length, penetration depth, and anisotropic were derived, showing strong agreement with experimental observations and effectively describing anisotropic multi‐band superconductivity.
Tsadik Kidanemariam +2 more
wiley +1 more source
Quantum‐Mechanical Wave Functions in Singular Potentials: Linear and Nonlinear States
Advanced Physics Research, EarlyView.The attractive singular potential −1/r2$-1/r^2$ gives rise to the quantum collapse in the 3D linear Schroedinger equation. The article summarizes theoretical results demonstrating suppression of the collapse and creation of the missing ground state (GS) in a gas of bosonic particles, carrying an electric dipole moment, which are pulled to the central ...
Hidetsugu Sakaguchi, Boris A. Malomed
wiley +1 more source
Time dependent quantum harmonic oscillator subject to a sudden change of mass: continuous solution [PDF]
, 2007 We show that a harmonic oscillator subject to a sudden change of mass produces squeezed states. Our study is based on an approximate analytic solution to the time-dependent harmonic oscillator equation with a subperiod function parameter. This continuous
HECTOR MANUEL MOYA CESSA +1 more
core
Bulletin of the Korean Chemical Society, EarlyView.Excited‐state absorption (ESA) spectra are notoriously hard to compute. We show that routine DFT and TDDFT vibronic transition calculations reproduce the vibronic band shapes and positions of azulene's experimental ESA spectrum, providing a practical route to assign ESA bands to specific electronic transitions and vibrational modes.
Joonyoung F. Joung, Sungnam Park
wiley +1 more source
Chemistry – A European Journal, EarlyView.We demonstrate the power of high‐resolution infrared spectroscopy and complementary quantum chemical calculations to unravel the evolution of the aromatic charge resonance interaction (CR) in cold trimer radical cations for the prototypical pyrrole clusters.
Dashjargal Arildii, Otto Dopfer
wiley +1 more source