Zobrazeno 1 - 10
of 725
pro vyhledávání: '"Parameswaran, S. A."'
We consider one dimensional many-particle systems that exhibit kinematically protected single-particle excitations over their ground states. We show that momentum and time-resolved 4-point functions of operators that create such excitations diverge l
Externí odkaz:
http://arxiv.org/abs/2411.06167
We study fermionic quantum spin liquids (QSLs) on the three-dimensonal trillium lattice of corner-sharing triangles. We are motivated by recent experimental and theoretical investigations that have explored various classical and quantum spin liquid s
Externí odkaz:
http://arxiv.org/abs/2409.02898
We link the presence of "unnecessary" quantum critical surfaces within a single gapped phase of matter to the non-trivial topology of families of gapped Hamiltonians that encircle the critical surface. We study a specific set of one-dimensional spin
Externí odkaz:
http://arxiv.org/abs/2408.15351
Autor:
Kwan, Yves H., Wang, Ziwei, Wagner, Glenn, Simon, Steven H., Parameswaran, S. A., Bultinck, Nick
We introduce and study new interacting topological states that arise in time-reversal symmetric bands with an underlying obstruction to forming localized states. If the $U(1)$ valley symmetry linked to independent charge conservation in each time-rev
Externí odkaz:
http://arxiv.org/abs/2406.15343
Autor:
Wang, Ziwei, Kwan, Yves H., Wagner, Glenn, Simon, Steven H., Bultinck, Nick, Parameswaran, S. A.
We explore the phase diagrams of moir\'e materials in search of a new class of intervalley-coherent correlated insulating state: the Chern texture insulator (CTI). This phase of matter, proposed in a companion paper, breaks valley $U(1)$ symmetry in
Externí odkaz:
http://arxiv.org/abs/2406.15342
Autor:
Placke, Benedikt, Parameswaran, S. A.
We study the non-unitary dynamics of a class of quantum circuits based on stochastically measuring check operators of subsystem quantum error-correcting codes, such as the Bacon-Shor code and its various generalizations. Our focus is on how propertie
Externí odkaz:
http://arxiv.org/abs/2405.14927
Autor:
Zhou, Zekang, Jiang, Jin, Karnatak, Paritosh, Wang, Ziwei, Wagner, Glenn, Watanabe, Kenji, Taniguchi, Takashi, Schönenberger, Christian, Parameswaran, S. A., Simon, Steven H., Banerjee, Mitali
Graphene moir\'e systems are ideal environments for investigating complex phase diagrams and gaining fundamental insights into the mechanisms underlying exotic states of matter, as they permit controlled manipulation of electronic properties. Magic-a
Externí odkaz:
http://arxiv.org/abs/2404.09909
Publikováno v:
Phys. Rev. B 110 (2024) 125140
We introduce an SU(M)-symmetric disordered bipartite spin model with unusual characteristics. Although superficially similar to the Sachdev-Ye model, it has several markedly different properties for M>2. In particular, it has a large non-trivial null
Externí odkaz:
http://arxiv.org/abs/2403.15270
Publikováno v:
Phys. Rev. B 109, 075108 (2024)
We study the behaviour of linear and nonlinear spectroscopic quantities in two-dimensional topologically ordered systems, which host anyonic excitations exhibiting fractional statistics. We highlight the role that braiding phases between anyons have
Externí odkaz:
http://arxiv.org/abs/2402.06484
Autor:
He, Yuchi, Rausch, Roman, Peschke, Matthias, Karrasch, Christoph, Corboz, Philippe, Bultinck, Nick, Parameswaran, S. A.
We use unrestricted Hartree-Fock, density matrix renormalization group, and variational projected entangled pair state calculations to investigate the ground state phase diagram of the triangular lattice Hubbard model at "half doping" relative to sin
Externí odkaz:
http://arxiv.org/abs/2311.10146