Search Results - "Vishwanath, Ashvin"

Origin of Magic Angles in Twisted Bilayer Graphene by Tarnopolsky, Grigory, Kruchkov, Alex Jura, Vishwanath, Ashvin

“…Twisted bilayer graphene (TBG) was recently shown to host superconductivity when tuned to special "magic angles" at which isolated and relatively flat bands…”
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Efficient topological materials discovery using symmetry indicators by Tang, Feng, Po, Hoi Chun, Vishwanath, Ashvin, Wan, Xiangang

“…Although the richness of spatial symmetries has led to a rapidly expanding inventory of possible topological crystalline (TC) phases of electrons, physical…”
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Comprehensive search for topological materials using symmetry indicators by Tang, Feng, Po, Hoi Chun, Vishwanath, Ashvin, Wan, Xiangang

“…Over the past decade, topological materials—in which the topology of electron bands in the bulk material leads to robust, unconventional surface states and…”
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Physics of Three-Dimensional Bosonic Topological Insulators: Surface-Deconfined Criticality and Quantized Magnetoelectric Effect by Vishwanath, Ashvin, Senthil, T.

“…We discuss physical properties of “integer” topological phases of bosons in D=3+1 dimensions, protected by internal symmetries like time reversal and/or charge…”
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Origin of Mott Insulating Behavior and Superconductivity in Twisted Bilayer Graphene by Po, Hoi Chun, Zou, Liujun, Vishwanath, Ashvin, Senthil, T.

“…A remarkable recent experiment has observed Mott insulator and proximate superconductor phases in twisted bilayer graphene when electrons partly fill a nearly…”
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Superconductivity from valley fluctuations and approximate SO(4) symmetry in a weak coupling theory of twisted bilayer graphene by You, Yi-Zhuang, Vishwanath, Ashvin

“…Abstarct The recent discovery of the Mott insulating and superconducting phases in twisted bilayer graphene has generated tremendous research interest. Here,…”
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Operator Spreading and the Emergence of Dissipative Hydrodynamics under Unitary Evolution with Conservation Laws by Khemani, Vedika, Vishwanath, Ashvin, Huse, David A.

“…We study the scrambling of local quantum information in chaotic many-body systems in the presence of a locally conserved quantity like charge or energy that…”
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Localization and topology protected quantum coherence at the edge of hot matter by Bahri, Yasaman, Vosk, Ronen, Altman, Ehud, Vishwanath, Ashvin

“…Topological phases are characterized by edge states confined near the boundaries by a bulk energy gap. On raising temperature, these edge states are typically…”
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Symmetry Indicators and Anomalous Surface States of Topological Crystalline Insulators by Khalaf, Eslam, Po, Hoi Chun, Vishwanath, Ashvin, Watanabe, Haruki

“…The rich variety of crystalline symmetries in solids leads to a plethora of topological crystalline insulators (TCIs), featuring distinct physical properties,…”
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Quantum oscillations from surface Fermi arcs in Weyl and Dirac semimetals by Potter, Andrew C., Kimchi, Itamar, Vishwanath, Ashvin

“…In a magnetic field, electrons in metals repeatedly traverse closed magnetic orbits around the Fermi surface. The resulting oscillations in the density of…”
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Prediction of Toric Code Topological Order from Rydberg Blockade by Verresen, Ruben, Lukin, Mikhail D., Vishwanath, Ashvin

“…The physical realization ofZ2topological order as encountered in the paradigmatic toric code has proven to be an elusive goal. We predict that this phase of…”
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Riemannian geometry of resonant optical responses by Ahn, Junyeong, Guo, Guang-Yu, Nagaosa, Naoto, Vishwanath, Ashvin

“…The geometry of quantum states is well established as a basis for understanding the response of electronic systems to static electromagnetic fields, as…”
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Emergent Space-Time Supersymmetry at the Boundary of a Topological Phase by Grover, Tarun, Sheng, D. N., Vishwanath, Ashvin

“…In contrast to ordinary symmetries, supersymmetry (SUSY) interchanges bosons and fermions. Originally proposed as a symmetry of our universe, it still awaits…”
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Anomalous Aharonov-Bohm conductance oscillations from topological insulator surface states by Zhang, Yi, Vishwanath, Ashvin

“…We study Aharonov-Bohm (AB) conductance oscillations arising from the surface states of a topological insulator nanowire, when a magnetic field is applied…”
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Baby skyrmions in Chern ferromagnets and topological mechanism for spin-polaron formation in twisted bilayer graphene by Khalaf, Eslam, Vishwanath, Ashvin

“…The advent of moiré materials has galvanized interest in the nature of charge carriers in topological bands. In contrast to conventional materials with…”
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Classification of Interacting Topological Floquet Phases in One Dimension by Potter, Andrew C., Morimoto, Takahiro, Vishwanath, Ashvin

“…Periodic driving of a quantum system can enable new topological phases with no analog in static systems. In this paper, we systematically classify…”
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Symmetry enforced non-Abelian topological order at the surface of a topological insulator by Chen, Xie, Fidkowski, Lukasz, Vishwanath, Ashvin

“…The surfaces of three-dimensional topological insulators (3D TIs) are generally described as Dirac metals, with a single Dirac cone. It was previously believed…”
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Shift Insulators: Rotation-Protected Two-Dimensional Topological Crystalline Insulators by Liu, Shang, Vishwanath, Ashvin, Khalaf, Eslam

“…We study a two-dimensional tight-binding model of a topological crystalline insulator (TCI) protected by rotation symmetry. The model is built by stacking two…”
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Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor by Gotlieb, Kenneth, Lin, Chiu-Yun, Serbyn, Maksym, Zhang, Wentao, Smallwood, Christopher L, Jozwiak, Christopher, Eisaki, Hiroshi, Hussain, Zahid, Vishwanath, Ashvin, Lanzara, Alessandra

“…Cuprate superconductors have long been thought of as having strong electronic correlations but negligible spin-orbit coupling. Using spin- and angle-resolved…”
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Theory of correlated insulating behaviour and spin-triplet superconductivity in twisted double bilayer graphene by Lee, Jong Yeon, Khalaf, Eslam, Liu, Shang, Liu, Xiaomeng, Hao, Zeyu, Kim, Philip, Vishwanath, Ashvin

“…Two graphene monolayers twisted by a small magic angle exhibit nearly flat bands, leading to correlated electronic states. Here we study a related but…”
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