Search Results - "Sarma, Sankar Das"

Collective Excitations of Quantum Anomalous Hall Ferromagnets in Twisted Bilayer Graphene by Wu, Fengcheng, Das Sarma, Sankar

“…We present a microscopic theory for collective excitations of quantum anomalous Hall ferromagnets (QAHF) in twisted bilayer graphene. We calculate the spin…”
Get full text

Interaction-Driven Filling-Induced Metal-Insulator Transitions in 2D Moiré Lattices by Pan, Haining, Das Sarma, Sankar

“…Using a realistic band structure for twisted WSe2 materials, we develop a theory for the interaction-driven correlated insulators to conducting metals…”
Get full text

Majorana zero modes and topological quantum computation by Sarma, Sankar Das, Freedman, Michael, Nayak, Chetan

“…We provide a current perspective on the rapidly developing field of Majorana zero modes (MZMs) in solid-state systems. We emphasise the theoretical prediction,…”
Get full text

Acoustic-Phonon-Mediated Superconductivity in Rhombohedral Trilayer Graphene by Chou, Yang-Zhi, Wu, Fengcheng, Sau, Jay D., Das Sarma, Sankar

“…Motivated by the observation of two distinct superconducting phases in the moiréless A B C -stacked rhombohedral trilayer graphene, we investigate the…”
Get full text

Universal optical conductivity of a disordered Weyl semimetal by Roy, Bitan, Juričić, Vladimir, Das Sarma, Sankar

“…Topological Weyl semimetals, besides manifesting chiral anomaly, can also accommodate a disorder-driven unconventional quantum phase transition into a metallic…”
Get full text

Topologically protected qubits from a possible non-Abelian fractional quantum Hall state by DAS SARMA, Sankar, FREEDMAN, Michael, NAYAK, Chetan

Get full text

A Practical Phase Gate for Producing Bell Violations in Majorana Wires by Clarke, David J., Sau, Jay D., Das Sarma, Sankar

“…Carrying out fault-tolerant topological quantum computation using non-Abelian anyons (e.g., Majorana zero modes) is currently an important goal of worldwide…”
Get full text

Comment on "Trivial Andreev Band Mimicking Topological Bulk Gap Reopening in the Nonlocal Conductance of Long Rashba Nanowires" by Das Sarma, Sankar, Pan, Haining

Get full text

Converting a real quantum spin bath to an effective classical noise acting on a central spin by Witzel, Wayne M., Young, Kevin, Das Sarma, Sankar

“…We present a cluster expansion method for approximating quantum spin-bath dynamics in terms of a classical Gaussian stochastic process. The cluster expansion…”
Get full text

Machine Learning the Disorder Landscape of Majorana Nanowires by Taylor, Jacob R, Sau, Jay D, Das Sarma, Sankar

“…We develop a practical machine learning approach to determine the disorder landscape of Majorana nanowires by using training of the conductance matrix and…”
Get full text

Strange metallicity of moiré twisted bilayer graphene by Das Sarma, Sankar, Wu, Fengcheng

“…Recent measurements in several different laboratories report the observation of an approximately linear-in-temperature resistivity with a large…”
Get full text

Geometrical Formalism for Dynamically Corrected Gates in Multiqubit Systems by Buterakos, Donovan, Das Sarma, Sankar, Barnes, Edwin

“…The ability to perform gates in multiqubit systems that are robust to noise is of crucial importance for the advancement of quantum information technologies…”
Get full text

Spin-Valley Qubit Dynamics in Exchange-Coupled Silicon Quantum Dots by Buterakos, Donovan, Das Sarma, Sankar

“…The presence of valley states is a significant obstacle to realizing quantum information technologies in silicon quantum dots, as leakage into alternate valley…”
Get full text

Three-dimensional topological twistronics by Wu, Fengcheng, Zhang, Rui-Xing, Das Sarma, Sankar

“…We introduce a theoretical framework for the concept of three-dimensional (3D) twistronics by developing a generalized Bloch band theory for 3D layered systems…”
Get full text

Hofstadter butterfly and Floquet topological insulators in minimally twisted bilayer graphene by Chou, Yang-Zhi, Wu, Fengcheng, Das Sarma, Sankar

“…We theoretically study the Hofstadter butterfly of a triangular network model in minimally twisted bilayer graphene. The band structure manifests periodicity…”
Get full text

Landau poles in condensed matter systems by Jian, Shao-Kai, Barnes, Edwin, Das Sarma, Sankar

“…The existence or not of Landau poles is one of the oldest open questions in nonasymptotic quantum field theories. We investigate the Landau pole issue in two…”
Get full text

Quantum stripe ordering in optical lattices by Wu, Congjun, Liu, W Vincent, Moore, Joel, Sarma, Sankar Das

“…We predict the robust existence of a novel quantum orbital stripe order in the p-band Bose-Hubbard model of two-dimensional triangular optical lattices with…”
Get full text

Ferromagnetic semiconductors A giant appears in spintronics by Das Sarma, Sankar

Get full text

In search of Majorana by Das Sarma, Sankar

“…Majorana particles are the same as their antiparticle, and their analogues in condensed matter may be a platform for quantum computing. Here I describe the…”
Get full text

Data needs and challenges for quantum dot devices automation by Zwolak, Justyna P., Taylor, Jacob M., Andrews, Reed W., Benson, Jared, Bryant, Garnett W., Buterakos, Donovan, Chatterjee, Anasua, Das Sarma, Sankar, Eriksson, Mark A., Greplová, Eliška, Gullans, Michael J., Hader, Fabian, Kovach, Tyler J., Mundada, Pranav S., Ramsey, Mick, Rasmussen, Torbjørn, Severin, Brandon, Sigillito, Anthony, Undseth, Brennan, Weber, Brian

“…Gate-defined quantum dots are a promising candidate system for realizing scalable, coupled qubit systems and serving as a fundamental building block for…”
Get full text