Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Zi Yang Meng"'
Autor:
Xiaoxue Ran, Zheng Yan, Yan-Cheng Wang, Rhine Samajdar, Junchen Rong, Subir Sachdev, Yang Qi, Zi Yang Meng
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Quantum loop and dimer models are prototypical correlated systems with local constraints, which are not only intimately connected to lattice gauge theories and topological orders but are also widely applicable to the broad research areas of
Externí odkaz:
https://doaj.org/article/a85f4691f73a4a31a18e1ee1315eed04
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-6 (2023)
Abstract The Mermin-Wagner theorem states that spontaneous continuous symmetry breaking is prohibited in systems with short-range interactions at spatial dimension D ≤ 2. For long-range interactions with a power-law form (1/r α ), the theorem furt
Externí odkaz:
https://doaj.org/article/47e4228b192a4f0f890ce80ba47eb4fe
Autor:
Zheng Yan, Zheng Zhou, Yan-Hua Zhou, Yan-Cheng Wang, Xingze Qiu, Zi Yang Meng, Xue-Feng Zhang
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-7 (2023)
Abstract Simulating lattice gauge theory (LGT) Hamiltonian and its nontrivial states by programmable quantum devices has attracted numerous attention in recent years. Rydberg atom arrays constitute one of the most rapidly developing arenas for quantu
Externí odkaz:
https://doaj.org/article/3af1ba4f9e914e3ba994b8fda70f8355
Autor:
Zheng Yan, Zi Yang Meng
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Based on the path integral formulation of the reduced density matrix, we develop a scheme to overcome the exponential growth of computational complexity in reliably extracting low-lying entanglement spectrum from quantum Monte Carlo simulati
Externí odkaz:
https://doaj.org/article/7c4a81273e064f078fe9c7e851dbe89f
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Quantum dimer models are known to host topological quantum spin liquid phases, and it has recently become possible to simulate related $${{\mathbb{Z}}}_{2}$$ Z 2 gauge theories with Rydberg atoms. Yan et al. compute the phase diagram of an experiment
Externí odkaz:
https://doaj.org/article/394693be6bc54be687d70c441840dfdd
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-9 (2022)
Abstract We develop a nonequilibrium increment method in quantum Monte Carlo simulations to obtain the Rényi entanglement entropy of various quantum many-body systems with high efficiency and precision. To demonstrate its power, we show the results
Externí odkaz:
https://doaj.org/article/47c8c1275ef54dbd89019a740de43b47
Monte Carlo study of the pseudogap and superconductivity emerging from quantum magnetic fluctuations
Autor:
Weilun Jiang, Yuzhi Liu, Avraham Klein, Yuxuan Wang, Kai Sun, Andrey V. Chubukov, Zi Yang Meng
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
The origin of pseudogap in high-T c superconductors remains a big puzzle. Here, the authors report numerical evidence of pseudogap behavior employing Quantum Monte Carlo algorithm emerging from pairing fluctuations in a quantum-critical non-Fermi liq
Externí odkaz:
https://doaj.org/article/3091bf458b624736a625a6f884640880
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Magic-angle twisted bilayer graphene exhibits a quantum anomalous Hall effect at 3/4 filling; however, its mechanism is debated. Here, the authors show that such a phase can be realized in a lattice model of twisted bilayer graphene in the strong cou
Externí odkaz:
https://doaj.org/article/f15f2242221848e9b2072a21a2820614
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Conventional quantum particles can break up into fractionalized excitations under the right conditions; however, their direct experimental observation is challenging. Here, the authors predict strong optical conductivity signatures of such excitation
Externí odkaz:
https://doaj.org/article/bf276df824dd4462b253613a1d5d5250
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033046 (2023)
Employing large-scale quantum Monte Carlo simulations, we systematically compute the energy spectra of the two-dimensional (2D) spin-1/2 Heisenberg model with long-range interactions. With the 1/r^{α} ferromagnetic and staggered antiferromagnetic in
Externí odkaz:
https://doaj.org/article/4f70e136775844b3b965a110a5afc3ac