Results 41 to 50 of about 98,865 (276)

The Bicomplex Quantum Harmonic Oscillator

Il Nuovo Cimento B, 2010
The problem of the quantum harmonic oscillator is investigated in the framework of bicomplex numbers, which are pairs of complex numbers making up a commutative ring with zero divisors. Starting with the commutator of the bicomplex position and momentum operators, and adapting the algebraic treatment of the standard quantum harmonic oscillator, we find
Lavoie, Raphael Gervais, Marchildon, Louis, Rochon, Dominic   +2 more
openaire   +2 more sources

KAM for the Quantum Harmonic Oscillator [PDF]

Communications in Mathematical Physics, 2011
54 pages. To appear in Comm.
Grébert, Benoît, Thomann, Laurent
openaire   +5 more sources

Irreversible quantum graphs

, 2003
Irreversibility is introduced to quantum graphs by coupling the graphs to a bath of harmonic oscillators. The interaction which is linear in the harmonic oscillator amplitudes is localized at the vertices.
Breit G, Carlson R, Feshbach H, Feshbach H, Feynman R P, Killip R, Killip R Simon B, Kostrykin V, Kottos T, Kottos T, Kottos T, Kottos T, Kuchment P, Pauli W, Solomyak M, Uzy Smilansky, Van Hove L   +16 more
core   +1 more source

Unitary relations in time-dependent harmonic oscillators [PDF]

, 1999
For a harmonic oscillator with time-dependent (positive) mass and frequency, an unitary operator is shown to transform the quantum states of the system to those of a harmonic oscillator system of unit mass and time-dependent frequency, as well as ...
Caldirola P, Colegrave R K, Colegrave R K, Dae-Yup Song, Ermakov V, Feynman R P, Haar D T, Hasse R W, Husimi K, Kanai E, Kerner E H, Leach P G L, Leach P G L, Lee M-H, Lewis H R, Lewis H R, Li F-l, Maamache M, Mostafazadeh A   +18 more
core   +2 more sources

Coherent States of Harmonic Oscillator and Generalized Uncertainty Principle

, 2005
In this paper dynamics and quantum mechanical coherent states of a simple harmonic oscillator are considered in the framework of Generalized Uncertainty Principle(GUP).
Azizi, Tahereh, Nozari, Kourosh
core   +2 more sources

Quantum Harmonic Oscillator Systems with Disorder [PDF]

Journal of Statistical Physics, 2012
We study many-body properties of quantum harmonic oscillator lattices with disorder. A sufficient condition for dynamical localization, expressed as a zero-velocity Lieb-Robinson bound, is formulated in terms of the decay of the eigenfunction correlators for an effective one-particle Hamiltonian.
Nachtergaele, Bruno, Sims, Robert, Stolz, Günter   +2 more
openaire   +5 more sources

Asymmetric variation of a finite mass harmonic like oscillator

Results in Physics, 2020
Classical and quantum mechanical analysis have been carried out on harmonic like oscillator with asymmetric position dependent mass. Phase space analysis are performed both classically and quantum mechanically for a plausible understanding of the subject.
Jihad Asad, P. Mallick, M.E. Samei, B. Rath, Prachiparava Mohapatra, Hussein Shanak, Rabab Jarrar   +6 more
doaj   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Quantization, group contraction and zero point energy [PDF]

, 2002
We study algebraic structures underlying 't Hooft's construction relating classical systems with the quantum harmonic oscillator. The role of group contraction is discussed.
't Hooft, 't Hooft, 't Hooft, Alhassid, Blasone, Blasone, Blasone, Blasone, Bracken, Celeghini, E Celeghini, Elze, Feshbach, G Vitiello, Gerry, Holstein, Inönü, Lindblad, M Blasone, P Jizba, Perelomov, Shah   +21 more
core   +2 more sources

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

Advanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam, Pravin Karna, Niraj Bhatt, Sandip Thakur, Helge Heinrich, Daniel M. Hirt, Saman Zare, Christopher Jezewski, Rinus T.P. Lee, Kandabara Tapily, John T. Gaskins, Colin D. Landon, Sean W. King, Ashutosh Giri, Patrick E. Hopkins   +14 more
wiley   +1 more source