Anomalous Low-Temperature Enhancement of Supercurrent in Topological-Insulator Nanoribbon Josephson Junctions: Evidence for Low-Energy Andreev Bound States

Citation:

Morteza Kayyalha, Mehdi Kargarian, Aleksandr Kazakov, Ireneusz Miotkowski, Victor M. Galitski, Victor M. Yakovenko, Leonid P. Rokhinson, and Yong P. Chen. 2019. “Anomalous Low-Temperature Enhancement of Supercurrent in Topological-Insulator Nanoribbon Josephson Junctions: Evidence for Low-Energy Andreev Bound States.” Phys. Rev. Lett., 122, Pp. 047003.

Recent Publications

Critical drag as a mechanism for resistivity

Citation:

Dominic Else and T. Senthil. 6/29/2021. “Critical drag as a mechanism for resistivity”. arXiv

Abstract:

Critical drag is thus a mechanism for resistivity that, unlike conventional mechanisms, is unrelated to broken symmetries. We furthermore argue that an emergent symmetry that has the appropriate mixed anomaly with electric charge is in fact an inevitable consequence of compressibility in systems with lattice translation symmetry. Critical drag therefore seems to be the only way (other than through irrelevant perturbations breaking the emergent symmetry, that disappear at the renormalization group fixed point) to get nonzero resistivity in such systems. Finally, we present a very simple and concrete model -- the "Quantum Lifshitz Model" -- that illustrates the critical drag mechanism as well as the other considerations of the paper.

Last updated on 07/09/2021

Prediction of Toric Code Topological Order from Rydberg Blockade

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Ruben Verresen, Mikhail D. Lukin, and Ashvin Vishwanath. 2021. “Prediction of Toric Code Topological Order from Rydberg Blockade.” Phys. Rev. X. Publisher's Version

Last updated on 07/09/2021

Topology of superconductors beyond mean-field theory

Citation:

Matthew F Lapa. 2020. “Topology of superconductors beyond mean-field theory.” arXiv:2003.05948 (accepted for publication in Phys. Rev. Research). Physical Review Research

Abstract:

The study of topological superconductivity is largely based on the analysis of mean-field Hamiltonians that violate particle number conservation and have only short-range interactions. Although this approach has been very successful, it is not clear that it captures the topological properties of real superconductors, which are described by number-conserving Hamiltonians with long-range interactions. To address this issue, we study topological superconductivity directly in the number-conserving setting.

Last updated on 07/09/2021

Electrodynamics of Thin Sheets of Twisted Material

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Dung Xuan Nguyen and Dam Thanh Son. 2020. “Electrodynamics of Thin Sheets of Twisted Material.” arXiv:2008.02812.

Self-Organized Error Correction in Random Unitary Circuits with Measurement

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Ruihua Fan, Sagar Vijay, Ashvin Vishwanath, and Yi-Zhuang You. 2020. “Self-Organized Error Correction in Random Unitary Circuits with Measurement.” arXiv:2002.12385.

Deconfined criticality and ghost Fermi surfaces at the onset of antiferromagnetism in a metal

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Ya-Hui Zhang and Subir Sachdev. 2020. “Deconfined criticality and ghost Fermi surfaces at the onset of antiferromagnetism in a metal.” arXiv:arXiv:2006.01140.

Ultra-Quantum Matter

Recent developments demonstrate that in the right circumstances, quantum aspects can extend to macroscopic scale. This is UQM.

Anomalous Low-Temperature Enhancement of Supercurrent in Topological-Insulator Nanoribbon Josephson Junctions: Evidence for Low-Energy Andreev Bound States

Citation:

Recent Publications

Critical drag as a mechanism for resistivity

Citation:

Abstract:

Prediction of Toric Code Topological Order from Rydberg Blockade

Citation:

Topology of superconductors beyond mean-field theory

Citation:

Abstract:

Electrodynamics of Thin Sheets of Twisted Material

Citation:

Self-Organized Error Correction in Random Unitary Circuits with Measurement

Citation:

Deconfined criticality and ghost Fermi surfaces at the onset of antiferromagnetism in a metal

Citation: