Classical and quantum description of a periodically driven multi-photon anharmonic oscillator
Sign Up to like & getrecommendations! Published in 2019 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-019-2096-1
Abstract: The Hamiltonian and hence the relevant equations of motion involving the dynamics of a driven classical anharmonic oscillator of 2m-th anaharmonicity are constructed. In order to derive the model of a driven multi-photon quantum anharmonic… read more here.
Keywords: quantum; multi photon; oscillator; driven multi ... See more keywords
Nonequilibrium nonlinear open quantum systems: Functional perturbative analysis of a weakly anharmonic oscillator
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.125002
Abstract: We introduce a functional perturbative method for treating weakly nonlinear systems coupled with a quantum field bath. We demonstrate using this method to obtain the covariance matrix elements and the correlation functions of a quantum… read more here.
Keywords: functional perturbative; open quantum; quantum systems; anharmonic oscillator ... See more keywords
Steady-state quantum transport through an anharmonic oscillator strongly coupled to two heat reservoirs.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review. E"
DOI: 10.1103/physreve.102.012155
Abstract: We investigate the transport properties of an anharmonic oscillator, modeled by a single-site Bose-Hubbard model, coupled to two different thermal baths using the numerically exact thermofield based chain-mapping matrix product states (TCMPS) approach. We compare… read more here.
Keywords: steady state; coupled two; anharmonic oscillator; transport ... See more keywords
Laser-Driven Anharmonic Oscillator: Ground-State Dissociation of the Helium Hydride Molecular Ion by Midinfrared Pulses.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.043202
Abstract: The vibrational motion of molecules represents a fundamental example of an anharmonic oscillator. Using a prototype molecular system, HeH^{+}, we demonstrate that appropriate laser pulses make it possible to drive the nuclear motion in the… read more here.
Keywords: ground state; hydride molecular; state; helium hydride ... See more keywords
Energy levels of one-dimensional anharmonic oscillator via neural networks
Sign Up to like & getrecommendations! Published in 2019 at "Modern Physics Letters A"
DOI: 10.1142/s0217732319500883
Abstract: In this work, we obtained energy levels of one-dimensional quartic anharmonic oscillator by using neural network system. Quartic anharmonic oscillator is a very important tool in quantum mechanics and also in the quantum field theory.… read more here.
Keywords: levels one; energy levels; oscillator; one dimensional ... See more keywords
Radial anharmonic oscillator: Perturbation theory, new semiclassical expansion, approximating eigenfunctions. I. Generalities, cubic anharmonicity case
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics A"
DOI: 10.1142/s0217751x19501434
Abstract: For the general [Formula: see text]-dimensional radial anharmonic oscillator with potential [Formula: see text] the perturbation theory (PT) in powers of coupling constant [Formula: see text] (weak coupling regime) and in inverse, fractional powers of… read more here.
Keywords: equation; formula see; see text; anharmonic oscillator ... See more keywords