Bipolaronic high-temperature superconductivity
Electron-lattice interactions play a prominent role in quantum materials, making a deeper
understanding of direct routes to phonon-mediated high-transition-temperature (T c) …
understanding of direct routes to phonon-mediated high-transition-temperature (T c) …
Non-hermitian strongly interacting Dirac fermions
Exotic quantum phases and phase transition in the strongly interacting Dirac systems have
attracted tremendous interests. On the other hand, non-Hermitian physics, usually …
attracted tremendous interests. On the other hand, non-Hermitian physics, usually …
Metal-insulator transition and quantum magnetism in the SU (3) Fermi-Hubbard model
We develop a self-consistent variant of the constrained path quantum Monte Carlo approach
which ensures its independence of the trial wave function, and apply the method to compute …
which ensures its independence of the trial wave function, and apply the method to compute …
Antiferromagnetism induced by bond Su-Schrieffer-Heeger electron-phonon coupling: A quantum Monte Carlo study
Antiferromagnetism (AFM) such as Néel ordering is often closely related to Coulomb
interactions such as Hubbard repulsion in two-dimensional (2D) systems. Whether Néel …
interactions such as Hubbard repulsion in two-dimensional (2D) systems. Whether Néel …
Phase diagram of the Su-Schrieffer-Heeger-Hubbard model on a square lattice
The Hubbard and Su-Schrieffer-Heeger (SSH) Hamiltonians are iconic models for
understanding the qualitative effects of electron-electron and electron-phonon interactions …
understanding the qualitative effects of electron-electron and electron-phonon interactions …
Valence-bond solid to antiferromagnet transition in the two-dimensional Su-Schrieffer-Heeger model by Langevin dynamics
The two-dimensional Su-Schrieffer-Heeger model of electrons coupled to quantum phonons
is investigated using Langevin dynamics within the framework of auxiliary-field quantum …
is investigated using Langevin dynamics within the framework of auxiliary-field quantum …
Attractive Su-Schrieffer-Heeger-Hubbard model on a square lattice away from half-filling
The Su-Schrieffer-Heeger (SSH) model, with bond phonons modulating electron tunneling,
is a paradigmatic electron-phonon model that hosts an antiferromagnetic order to bond …
is a paradigmatic electron-phonon model that hosts an antiferromagnetic order to bond …
Hubbard and Heisenberg models on hyperbolic lattices: Metal-insulator transitions, global antiferromagnetism, and enhanced boundary fluctuations
We study the Hubbard and Heisenberg models on hyperbolic lattices with open boundary
conditions by means of mean-field approximations, spin-wave theory, and quantum Monte …
conditions by means of mean-field approximations, spin-wave theory, and quantum Monte …
Role of bath-induced many-body interactions in the dissipative phases of the Su-Schrieffer-Heeger model
The Su-Schrieffer-Heeger chain is a prototype example of a symmetry-protected topological
insulator. Coupling it nonperturbatively to local thermal environments, either through the …
insulator. Coupling it nonperturbatively to local thermal environments, either through the …
Comparative determinant quantum Monte Carlo study of the acoustic and optical variants of the Su-Schrieffer-Heeger model
We compare the acoustic Su–Schrieffer–Heeger (SSH) model with two of its optical variants
where the phonons are defined on either on the sites or bonds of the system. First, we …
where the phonons are defined on either on the sites or bonds of the system. First, we …