Zobrazeno 1 - 10
of 3 212
pro vyhledávání: '"Sheng, D"'
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
A recent experiment observes a series of quantum spin Hall effects in transition metal dichalcogenide moir\'e MoTe$_2$ [K. Kang, \textit{et. al}, Nature 628, 522-526 (2024)]. Among them, the filling $\nu=3$ state points to a time-reversal pair of edg
Externí odkaz:
http://arxiv.org/abs/2405.08386
We study twisted bilayer MoTe$_2$ systems at fractional fillings of the lowest hole band under an applied out-of-plane displacement field. By employing exact diagonalization in finite-size systems, we systematically map out the ground state quantum p
Externí odkaz:
http://arxiv.org/abs/2405.08181
Publikováno v:
Phys. Rev. Lett. 133, 066601 (2024)
We predict the emergence a state of matter with intertwined ferromagnetism, charge order and topology in fractionally filled moir\'e superlattice bands. Remarkably, these quantum anomalous Hall crystals exhibit a quantized integer Hall conductance th
Externí odkaz:
http://arxiv.org/abs/2402.17832
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
Generalized Wigner Crystal (GWC) is a novel quantum phase of matter driven by further-range interaction at fractional fillings of a lattice. The role of further range interaction as the driver for the incompressible state is akin to Wigner crystal. O
Externí odkaz:
http://arxiv.org/abs/2312.03828
Publikováno v:
Phys. Rev. B 109, 165109 (2024)
As one of the most intriguing states of matter, the chiral spin liquid (CSL) has attracted much scientific interest while its existence and mechanism in crystalline strongly correlated systems remain hotly debated. On the other hand, strong correlati
Externí odkaz:
http://arxiv.org/abs/2306.03056
Publikováno v:
Phys. Rev. Lett. 132, 066002 (2024)
The square-lattice Hubbard and closely related $t$-$J$ models are considered as basic paradigms for understanding strong correlation effects and unconventional superconductivity (SC). Recent large-scale density matrix renormalization group (DMRG) sim
Externí odkaz:
http://arxiv.org/abs/2304.03963
Publikováno v:
Phys. Rev. B 110, 165127 (2024)
Understanding the doped Mott insulator is a central challenge in condensed matter physics. In this work, we first explicitly identify a new sign structure in the $t$-$t'$-$J$ model on the square lattice that replaces the conventional Fermi statistics
Externí odkaz:
http://arxiv.org/abs/2303.13498
We have performed large-scale density-matrix renormalization group studies of the lightly doped Hubbard model on the honeycomb lattice on long three and four-leg cylinders. We find that the ground state of the system upon lightly doping is consistent
Externí odkaz:
http://arxiv.org/abs/2303.12348