Zobrazeno 1 - 10
of 85 694
pro vyhledávání: '"Holstein P"'
The exotic quantum states emerging in the quasicrystal (QC) have attracted extensive interest because of various properties absent in the crystal. In this paper, we systematically study the Holstein model at half filling on a prototypical structure o
Externí odkaz:
http://arxiv.org/abs/2409.18050
We theoretically propose the occurrence of a quantum spin Hall (QSH) and a second order topological phase transition (TPT) driven by electron-phonon (e-p) coupling in a pseudospin-$1$ fermionic system on an $\alpha$-$T_3$ lattice. Our model is formul
Externí odkaz:
http://arxiv.org/abs/2408.14367
The Holstein model on a square lattice at half-filling has a well-established finite temperature phase transition to an insulating state with long range charge density wave (CDW) order. Because this CDW formation suppresses pairing, a superconducting
Externí odkaz:
http://arxiv.org/abs/2407.02239
Autor:
Yang, Junjie, Cui, Zhi-Hao, Mahajan, Ankit, Zhai, Huanchen, Reichman, David R., Chan, Garnet Kin-Lic
Polarons are quasiparticles formed as a result of lattice distortions induced by charge carriers. The single-electron Holstein model captures the fundamentals of single polaron physics. We examine the power of the exponential ansatz for the polaron g
Externí odkaz:
http://arxiv.org/abs/2405.18771
Autor:
Ahmed A. Saleh, Tarek G. M. Hassan, Dalia K. A. EL-Hedainy, Adel S. A. El-Barbary, Mahmoud A. Sharaby, Elsayed E. Hafez, Amr M. A. Rashad
Publikováno v:
BMC Veterinary Research, Vol 20, Iss 1, Pp 1-19 (2024)
Abstract Background The insulin-like growth factor (IGF-I) and growth hormone (GH) genes have been identified as major regulators of milk yield and composition, and reproductive performance in cattle. Genetic variations/polymorphism in these genes ha
Externí odkaz:
https://doaj.org/article/68bf0e1b7b5546b8b608035ab3e090bb
Autor:
Jung, Sung Won, Mukherjee, Saumya, Watson, Matthew D., Evtushinsky, Daniil V., Cacho, Cephise, Martino, Edoardo, Berger, Helmut, Kim, Timur K.
Interaction between electrons and phonons in solids is a key effect defining physical properties of materials such as electrical and thermal conductivity. In transitional metal dichalcogenides (TMDCs) the electron-phonon coupling results in the creat
Externí odkaz:
http://arxiv.org/abs/2406.08025
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Akademický článek
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Most nonperturbative numerical studies of electron-phonon interactions focus on model Hamiltonians where the electrons interact with a phonon branch via a single type of microscopic mechanism. Two commonly explored couplings in this context are the H
Externí odkaz:
http://arxiv.org/abs/2403.15386
A robust theory of the mechanism of pair density wave (PDW) superconductivity (i.e. where Cooper pairs have nonzero center of mass momentum) remains elusive. Here we explore the triangular lattice $t$-$J$-$V$ model, a low-energy effective theory deri
Externí odkaz:
http://arxiv.org/abs/2404.11950