Zobrazeno 1 - 10
of 492
pro vyhledávání: '"Subir Sachdev"'
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
Autor:
Maine Christos, Subir Sachdev
Publikováno v:
npj Quantum Materials, Vol 9, Iss 1, Pp 1-10 (2024)
Abstract We model the pseudogap state of the hole- and electron-doped cuprates as a metal with hole and/or electron pocket Fermi surfaces. In the absence of long-range antiferromagnetism, such Fermi surfaces violate the Luttinger requirement of enclo
Externí odkaz:
https://doaj.org/article/3cd418b6c2954c8f93f42284b1a683fb
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract The superconducting state and mechanism are among the least understood phenomena in twisted graphene systems. Recent tunneling experiments indicate a transition between nodal and gapped pairing with electron filling, which is not naturally u
Externí odkaz:
https://doaj.org/article/9e4d027e1d7940d4a9c901559ecaf043
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033018 (2024)
We consider a SU(2) lattice gauge theory on the square lattice, with a single fundamental complex fermion and a single fundamental complex boson on each lattice site. Projective symmetries of the gauge-charged fermions are chosen so that they match w
Externí odkaz:
https://doaj.org/article/3d5a1f70147e4aabb0bc794fd6083103
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
Autor:
Henry Shackleton, Subir Sachdev
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-35 (2022)
Abstract We analyze a Higgs transition from a U(1) Dirac spin liquid to a gapless ℤ2 spin liquid. This ℤ2 spin liquid is of relevance to the spin S = 1/2 square lattice antiferromagnet, where recent numerical studies have given evidence for such
Externí odkaz:
https://doaj.org/article/a03af7792f6c4f3283b02b066b8034b6
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043143 (2023)
We extend the theory of shot noise in coherent metals to shot noise in strange metals without quasiparticle excitations. This requires a generalization of the Boltzmann equation with a noise source to distribution functions which depend independently
Externí odkaz:
https://doaj.org/article/1354538cad284d4493e61286f177477b
Autor:
Cole Miles, Rhine Samajdar, Sepehr Ebadi, Tout T. Wang, Hannes Pichler, Subir Sachdev, Mikhail D. Lukin, Markus Greiner, Kilian Q. Weinberger, Eun-Ah Kim
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013026 (2023)
Machine learning has recently emerged as a promising approach for studying complex phenomena characterized by rich datasets. In particular, data-centric approaches lead to the possibility of automatically discovering structures in experimental datase
Externí odkaz:
https://doaj.org/article/db2b65c03afd43028948bc00e8dd95b5
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013045 (2023)
We investigate models of electrons in the Sachdev-Ye-Kitaev class with random and all-to-all electron hopping, electron spin exchange, and Cooper-pair hopping. An attractive on-site interaction between electrons leads to superconductivity at low temp
Externí odkaz:
https://doaj.org/article/5cbf1d69f7934bdd8d232adea61e0f01
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-74 (2020)
Abstract We describe numerous properties of the Sachdev-Ye-Kitaev model for complex fermions with N ≫ 1 flavors and a global U(1) charge. We provide a general definition of the charge in the (G, Σ) formalism, and compute its universal relation to
Externí odkaz:
https://doaj.org/article/5b6c75d82701455dabc315f9284de8cd