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pro vyhledávání: '"t, J."'
Unraveling the microscopic mechanisms governing the physics of doped quantum magnets is a central challenge in strongly correlated many-body physics. Quantum simulation platforms, e.g. ultracold atoms trapped in optical lattices or tweezer arrays, of
Externí odkaz:
http://arxiv.org/abs/2410.00904
Understanding the physics of the two-dimensional Hubbard model is widely believed to be a key step in achieving a full understanding of high-$T_\mathrm{c}$ cuprate superconductors. In recent years, progress has been made by large-scale numerical simu
Externí odkaz:
http://arxiv.org/abs/2409.18131
The pairing mechanism in an antiferromagnetic (AFM) bosonic $t$-$J$ model is investigated via large-scale density matrix renormalization group calculations. In contrast to the competing orders in the fermionic $t$-$J$ model, we discover that a pair d
Externí odkaz:
http://arxiv.org/abs/2409.15424
Recently, a flurry of works have found strong competition between charge density wave (CDW) and superconductivity (SC) in the doped Hubbard and $t$-$J$ models on the square lattice. Interestingly, some recent results suggest that the electron-phonon
Externí odkaz:
http://arxiv.org/abs/2409.15270
Distinct from the $\text{SU}(2)$ case, the fermionic systems with $\text{SU}(N)$ symmetry are expected to exhibit novel physics, such as exotic singlet formation. Using the density matrix renormalization group technique, we obtain the ground state ph
Externí odkaz:
http://arxiv.org/abs/2409.09344
Simulating large, strongly interacting fermionic systems remains a major challenge for existing numerical methods. In this work, we present, for the first time, the application of neural quantum states - specifically, hidden fermion determinant state
Externí odkaz:
http://arxiv.org/abs/2411.10430
Autor:
Staszewski, Luke, Wietek, Alexander
We investigate the fundamental dynamical process of an initial quench of the chemical potential of the two-dimensional $t$-$J$ model. Depending on the ground state phase, sharply different dynamical behavior of the charge distribution and entanglemen
Externí odkaz:
http://arxiv.org/abs/2410.16387
Publikováno v:
Phys. Rev. B 110, 054514 (2024)
It remains an open question whether the two-dimensional single-band pure Hubbard model and its related pure $t$-$J$ model truly capture the superconducting order in cuprates. Recent numerical studies on this issue have raised a notable disparity in s
Externí odkaz:
http://arxiv.org/abs/2406.08780
Publikováno v:
J. Phys. Soc. Jpn. 93, 084703 (2024)
We investigate the ground-state properties of a correlated model for the double-chain structure in cuprates. We consider the $t$-$J$ model, in which the nearest-neighbor spin interaction $J_1$ is smaller than the next-nearest-neighbor interaction $J_
Externí odkaz:
http://arxiv.org/abs/2407.16325