Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Sordi, G."'
Understanding the similarities and differences between adding or removing electrons from a charge-transfer insulator may provide insights about the origin of the electron-hole asymmetry found in cuprates. Here we study with cellular dynamical mean-fi
Externí odkaz:
http://arxiv.org/abs/2407.19545
Autor:
Sordi, G., Tremblay, A. -M. S.
Publikováno v:
Phys. Rev. D 109, 114020 (2024)
Critical phenomena emerging from the critical end point of a first-order transition are ubiquitous in nature. Here we bring the concept of a supercritical crossover, the Widom line, initially developed in the context of fluids, into the interacting m
Externí odkaz:
http://arxiv.org/abs/2312.12401
Publikováno v:
Phys. Rev. B 108, 075163 (2023)
Doping a Mott insulator gives rise to unconventional superconducting correlations. Here we address the interplay between d-wave superconductivity and Mott physics using the two-dimensional Hubbard model with cellular dynamical mean-field theory on a
Externí odkaz:
http://arxiv.org/abs/2307.02681
Publikováno v:
Phys. Rev. B 106, 235134 (2022)
We predict sound anomalies at the doping $\delta_{p}$ where the pseudogap ends in the normal state of hole-doped cuprates. Our prediction is based on the two-dimensional compressible Hubbard model using cluster dynamical mean-field theory. We find sh
Externí odkaz:
http://arxiv.org/abs/2207.00676
Publikováno v:
In Future Batteries September 2024 3
Publikováno v:
Proceedings of the National Academy of Sciences, 118 (25), e2104114118 (2021)
A key open issue in condensed matter physics is how quantum and classical correlations emerge in an unconventional superconductor from the underlying normal state. We study this problem in a doped Mott insulator with information theory tools on the t
Externí odkaz:
http://arxiv.org/abs/2106.15548
Publikováno v:
PRX Quantum 1, 020310 (2020)
Tools of quantum information theory offer a new perspective to characterize phases and phase transitions in interacting many-body quantum systems. The Hubbard model is the archetypal model of such systems and can explain rich phenomena of quantum mat
Externí odkaz:
http://arxiv.org/abs/2007.00562
The interaction-driven Mott transition in the half-filled Hubbard model is a first-order phase transition that terminates at a critical point $(T_\mathrm{c},U_\mathrm{c})$ in the temperature-interaction plane $T-U$. A number of crossovers occur along
Externí odkaz:
http://arxiv.org/abs/2004.02302
Publikováno v:
Phys. Rev. B 100, 121105 (2019)
Recent experiments on cuprates show that as a function of doping, the normal-state specific heat sharply peaks at the doping $\delta^*$, where the pseudogap ends at low temperature. This finding is taken as the thermodynamic signature of a quantum cr
Externí odkaz:
http://arxiv.org/abs/1905.02281
Critical Opalescence across the Doping Driven Mott Transition in Optical Lattices of Ultracold Atoms
Publikováno v:
Phys. Rev. B 99, 165151 (2019)
Phase transitions and their associated crossovers are imprinted in the behavior of fluctuations. Motivated by recent experiments on ultracold atoms in optical lattices, we compute the thermodynamic density fluctuations $\delta N^2$ of the two-dimensi
Externí odkaz:
http://arxiv.org/abs/1902.00583