Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Maine Christos"'
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:
Physical Review X, Vol 12, Iss 2, p 021018 (2022)
Motivated by recent experiments indicating strong superconductivity and intricate correlated insulating and flavor-polarized physics in mirror-symmetric twisted-trilayer graphene, we study the effects of interactions in this system close to the magic
Externí odkaz:
https://doaj.org/article/06b09a5251964e2db85e337f1add2a20
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America. 119(29)
We investigate a model of electrons with random and all-to-all hopping and spin exchange interactions, with a constraint of no double occupancy. The model is studied in a Sachdev-Ye-Kitaev-like large
Autor:
Maine Christos, Zhu-Xi Luo, Henry Shackleton, Ya-Hui Zhang, Mathias S. Scheurer, Subir Sachdev
Early studies proposed a connection between cuprate superconductivity and fractionalized spin liquid states. But the low temperature phase diagram is dominated by states without fractionalization, with a competition between superconductivity and char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbbf28014c66653507067a131b3ac0e8
Autor:
Simon Turkel, Joshua Swann, Ziyan Zhu, Maine Christos, K. Watanabe, T. Taniguchi, Subir Sachdev, Mathias S. Scheurer, Efthimios Kaxiras, Cory R. Dean, Abhay N. Pasupathy
Publikováno v:
Science (New York, N.Y.). 376(6589)
Magic-angle twisted trilayer graphene (TTG) has recently emerged as a platform to engineer strongly correlated flat bands. We reveal the normal-state structural and electronic properties of TTG using low-temperature scanning tunneling microscopy at t
We investigate a model of electrons with random and all-to-all hopping and spin exchange interactions, with a constraint of no double occupancy. The model is studied in a Sachdev-Ye-Kitaev-like large-$M$ limit with SU($M$) spin symmetry. The saddle p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8eb6a30c03e73941abbd492685a6bae
http://arxiv.org/abs/2203.16548
http://arxiv.org/abs/2203.16548
Publikováno v:
Physical Review B. 105
We study quantum SU($M$) spins with all-to-all and random Heisenberg exchange interactions of root-mean-square strength $J$. The $M \rightarrow \infty$ model has a spin liquid ground state with the spinons obeying the equations of the Sachdev-Ye-Kita
Motivated by recent experiments indicating strong superconductivity and intricate correlated insulating and flavor-polarized physics in mirror-symmetric twisted trilayer graphene, we study the effects of interactions in this system close to the magic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::800452637f6dfa28e0383efecfed3345
http://arxiv.org/abs/2106.02063
http://arxiv.org/abs/2106.02063