A quadratic time-dependent quantum harmonic oscillator. [PDF]
Sci Rep, 2023 We present a Lie algebraic approach to a Hamiltonian class covering driven, parametric quantum harmonic oscillators where the parameter set—mass, frequency, driving strength, and parametric pumping—is time-dependent.
Onah FE +5 more
europepmc +4 more sources
Thermalization in a Quantum Harmonic Oscillator with Random Disorder. [PDF]
Entropy (Basel), 2020 We propose a possible scheme to study the thermalization in a quantum harmonic oscillator with random disorder. Our numerical simulation shows that through the effect of random disorder, the system can undergo a transition from an initial nonequilibrium ...
Hsueh YW, Hsueh CH, Wu WC.
europepmc +3 more sources
Quantum Harmonic Oscillator Spectrum Analyzers. [PDF]
Phys Rev Lett, 2021 Characterization and suppression of noise are essential for the control of harmonic oscillators in the quantum regime. We measure the noise spectrum of a quantum harmonic oscillator from low frequency to near the oscillator resonance by sensing its ...
Keller J +7 more
europepmc +3 more sources
Multiscale Quantum Harmonic Oscillator Algorithm for Multimodal Optimization. [PDF]
Comput Intell Neurosci, 2018 This paper presents a variant of multiscale quantum harmonic oscillator algorithm for multimodal optimization named MQHOA-MMO. MQHOA-MMO has only two main iterative processes: quantum harmonic oscillator process and multiscale process.
Wang P +5 more
europepmc +2 more sources
Radiation reaction and quantum damped harmonic oscillator [PDF]
Mod. Phys. Lett. A, Vol. 20, No. 39 (2005) 3025-3034, 2005 By taking a Klein-Gordon field as the environment of an harmonic oscillator and using a new method for dealing with quantum dissipative systems (minimal coupling method), the quantum dynamics and radiation reaction for a quantum damped harmonic oscillator investigated.
F. KHEIRANDISH +5 more
arxiv +3 more sources
Quantum dynamics of the damped harmonic oscillator [PDF]
New Journal of Physics, 2012 The quantum theory of the damped harmonic oscillator has been a subject of continual investigation since the 1930s. The obstacle to quantization created by the dissipation of energy is usually dealt with by including a discrete set of additional harmonic
T G Philbin
doaj +2 more sources
Amplitude and phase representation of quantum invariants for the time dependent harmonic oscillator [PDF]
, 2002 The correspondence between classical and quantum invariants is established. The Ermakov Lewis quantum invariant of the time dependent harmonic oscillator is translated from the coordinate and momentum operators into amplitude and phase operators.
C.J. Eliezer +20 more
core +2 more sources
Quantum probability applied to the damped harmonic oscillator [PDF]
arXiv, 2004 In this introductory course we sketch the framework of quantum probability in order to discuss open quantum systems, in particular the damped harmonic oscillator.
Hans Maassen
arxiv +3 more sources
Non-relativistic quantum effects on the harmonic oscillator in a spacetime with a distortion of a vertical line into a vertical spiral [PDF]
European Physical Journal C: Particles and Fields, 2019 Non-relativistic quantum effects of the topology of the spacetime with the distortion of a vertical line into a vertical spiral on the harmonic oscillator are investigated.
W. C. F. da Silva +2 more
doaj +2 more sources
Multi objective optimization algorithm for hybrid quantum harmonic oscillator and its application in rotor system optimization. [PDF]
Sci RepThe importance of support system dynamic fidelity in capturing turbine rotor performance in unbalance response and critical speed is considered. Lobal optimization methods based on multi-scale quantum harmonic oscillator algorithm and genetic algorithm ...
Li J +6 more
europepmc +2 more sources