Zobrazeno 1 - 10
of 1 278
pro vyhledávání: '"Quantum phase diagram"'
Experimental realizations of Abelian fractional Chern insulators (FCIs) have demonstrated the potentials of moir\'e systems in synthesizing exotic quantum phases. Remarkably, twisted multilayer graphene system may also host non-Abelian states competi
Externí odkaz:
http://arxiv.org/abs/2412.02128
We study the ground-state phase diagram of the spin-$1/2$ Kitaev-Heisenberg model on the bilayer honeycomb lattice with large-scale tensor network calculations based on the infinite projected entangled pair state technique as well as high-order serie
Externí odkaz:
http://arxiv.org/abs/2412.17495
Autor:
Jahromi, Saeed S.1,2,3 (AUTHOR), Hörmann, Max4 (AUTHOR), Adelhardt, Patrick4 (AUTHOR), Fey, Sebastian4 (AUTHOR), Karamnejad, Hooman2 (AUTHOR), Orús, Román1,3,5 (AUTHOR) roman.orus@dipc.org, Schmidt, Kai Phillip4 (AUTHOR)
Publikováno v:
Communications Physics. 10/4/2024, Vol. 7 Issue 1, p1-8. 8p.
Publikováno v:
Physical Review B 109, 125146 (2024)
We study the spin-$1/2$ Heisenberg model on the square lattice with the first and second nearest-neighbor antiferromagnetic couplings $J_1$, $J_2$, as well as the three-spin scalar chiral coupling $J_{\chi}$. Using density matrix renormalization grou
Externí odkaz:
http://arxiv.org/abs/2401.07461
Autor:
Sushchyev, Alexander, Wessel, Stefan
Publikováno v:
Phys. Rev. B 108, 235146 (2023)
Using large-scale quantum Monte Carlo simulations, we determine the ground state phase diagram of the spin-1/2 antiferromagnetic Heisenberg model on the honeycomb lattice for the most generic case of three varying interaction strengths along the diff
Externí odkaz:
http://arxiv.org/abs/2308.15871
Autor:
Saeed S. Jahromi, Max Hörmann, Patrick Adelhardt, Sebastian Fey, Hooman Karamnejad, Román Orús, Kai Phillip Schmidt
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-8 (2024)
Abstract We use tensor-network methods and high-order linked-cluster expansions to explore the quantum phase diagram of the antiferromagnetic Kitaev honeycomb model in a magnetic field for general spin S values. Tensor network calculations for the pu
Externí odkaz:
https://doaj.org/article/adb91e0e59a54eb792bd322a553db9f5
Publikováno v:
Phys. Rev. B 107, 224427 (2023)
Adding a Rashba term to the Hubbard Hamiltonian produces a model which can be used to learn how spin-orbit interactions impact correlated electrons on a lattice. Previous works have studied such a model using a variety of theoretical frameworks, main
Externí odkaz:
http://arxiv.org/abs/2303.12142
Since strong quantum fluctuations are essential for the emergence of quantum spin liquids, there have been extensive exploration and identification of spin liquid candidates in spin-$1/2$ systems, while such activities are rare in higher spin systems
Externí odkaz:
http://arxiv.org/abs/2212.14223
Publikováno v:
Phys. Rev. Lett. 130, 136003 (2023)
The topological superconducting state is a highly sought-after quantum state hosting topological order and Majorana excitations. In this work, we explore the mechanism to realize the topological superconductivity (TSC) in the doped Mott insulators wi
Externí odkaz:
http://arxiv.org/abs/2209.00833
We propose an experimental realization of the time-periodically modulated Rabi frequency and suggest density-dependent hoppings of two species hardcore bosons in a one-dimensional optical lattice. Distinct from the previous work [Phys. Rev. Research
Externí odkaz:
http://arxiv.org/abs/2204.07739