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pro vyhledávání: '"Watson, D K"'
Autor:
Watson, D. K.
Typically visualized from an independent particle viewpoint, the Pauli principle's role in collective motion is analyzed leading to a reimagination of the microscopic dynamics underlying superfluidity/superconductivity and a reinterpretation of sever
Externí odkaz:
http://arxiv.org/abs/2304.04696
Autor:
Watson, D. K.
The transition from the weakly interacting BCS regime to the strongly interacting unitary regime is explored for ultracold trapped Fermi gases assuming a normal mode description of the gas instead of the conventional Cooper pairing. The Pauli princip
Externí odkaz:
http://arxiv.org/abs/2206.12021
Autor:
Watson, D. K.
Publikováno v:
Phys. Rev. A 104, 033320 (2021)
The frequencies of the analytic normal modes for N identical particles are studied as a function of system parameters from the weakly interacting BCS regime to the strongly interacting unitary regime. The normal modes were obtained previously from a
Externí odkaz:
http://arxiv.org/abs/2105.10608
Autor:
Watson, D. K.
Normal mode dynamics are ubiquitous underlying the motions of diverse systems from rotating stars to crystal structures. These behaviors are composed of simple collective motions of particles which move with the same frequency and phase, thus encapsu
Externí odkaz:
http://arxiv.org/abs/1908.08100
Introduced eighty years ago, the Fermi pseudopotential has been a powerful concept in multiple fields of physics. It replaces the detailed shape of a potential by a delta-function operator multiplied by a parameter giving the strength of the potentia
Externí odkaz:
http://arxiv.org/abs/1806.05726
Autor:
Watson, D. K.
Understanding the emergence of collective organizational phenomena is a major goal in many fields of physics from condensed matter to cosmology. Using a recently introduced manybody perturbation formalism for fermions, we propose a mechanism for the
Externí odkaz:
http://arxiv.org/abs/1803.05977
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Autor:
Watson, D. K.1 (AUTHOR) dwatson@ou.edu
Publikováno v:
Journal of Low Temperature Physics. Jul2023, Vol. 212 Issue 1/2, p1-21. 21p.
Autor:
Watson, D. K.
Confined quantum systems involving $N$ identical interacting fermions are found in many areas of physics, including condensed matter, atomic, nuclear and chemical physics. In a previous series of papers, a manybody perturbation method that is applica
Externí odkaz:
http://arxiv.org/abs/1506.05122
Group theoretic and graphical techniques are used to derive the N-body wave function for a system of identical bosons with general interactions through first-order in a perturbation approach. This method is based on the maximal symmetry present at lo
Externí odkaz:
http://arxiv.org/abs/0808.2949