Zobrazeno 1 - 10
of 2 566
pro vyhledávání: '"Strong-Coupling theory"'
Superconductivity in doped SrTiO$_3$ has remained an enduring mystery for over 50 years. The material's status as a ``quantum" ferroelectric metal, characterized by a soft polar mode, suggests that quantum criticality could play a pivotal role in the
Externí odkaz:
http://arxiv.org/abs/2412.05374
We consider an interacting quantum dot strongly coupled to two superconducting leads in a Josephson junction geometry. By defining symmetry-adapted superpositions of states from the leads, we formulate an effective Hamiltonian for the strong-hybridis
Externí odkaz:
http://arxiv.org/abs/2304.12456
Autor:
Alexandre S. Alexandrov
High-temperature superconductivity has transformed the landscape of solid state science, leading to the discovery of new classes of materials, states of matter, and concepts. However, despite being over a quarter of a century since its discovery, the
Akademický článek
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Publikováno v:
Phys. Rev. Research 3, 033166 (2021)
We develop a strong-coupling theory of Bose-Einstein condensate-mediated superconductivity in a hybrid system, which consists of a two-dimensional electron gas with either (i) parabolic spectrum or (ii) relativistic Dirac spectrum in the vicinity of
Externí odkaz:
http://arxiv.org/abs/2106.07821
Publikováno v:
Annals of Physics 435 (2021) 168495
We give a self contained review of a recently developed strong coupling theory of magic-angle graphene. An advantage of this approach is that a single formulation can capture both the insulating and superconducting states, and with a few simplifying
Externí odkaz:
http://arxiv.org/abs/2105.08858
Publikováno v:
Physical Review E 102 (4), 042604 (2020)
By a combination of Monte Carlo simulations and analytical calculations, we investigate the effective interactions between highly charged planar interfaces, neutralized by mobile counterions (salt-free system). While most previous analysis have focus
Externí odkaz:
http://arxiv.org/abs/2011.09720
Publikováno v:
Phys. Rev. A 101, 013602 (2020)
We theoretically investigate strong-coupling properties of an ultracold Fermi gas in the BCS-BEC crossover regime in the non-equilibrium steady state, being coupled with two fermion baths. By developing a non-equilibrium strong-coupling theory based
Externí odkaz:
http://arxiv.org/abs/1910.12476