Weyl Josephson circuits

We introduce Weyl Josephson circuits: small Josephson junction circuits that simulate Weyl band structures. We first formulate a general approach to design circuits that are analogous to Bloch Hamiltonians of a desired dimensionality and symmetry class. We then construct and analyze a six-junction d...

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Main Authors: Valla Fatemi, Anton R. Akhmerov, Landry Bretheau
Format: Article
Language:English
Published: American Physical Society 2021-03-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.013288
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author Valla Fatemi
Anton R. Akhmerov
Landry Bretheau
author_facet Valla Fatemi
Anton R. Akhmerov
Landry Bretheau
author_sort Valla Fatemi
collection DOAJ
description We introduce Weyl Josephson circuits: small Josephson junction circuits that simulate Weyl band structures. We first formulate a general approach to design circuits that are analogous to Bloch Hamiltonians of a desired dimensionality and symmetry class. We then construct and analyze a six-junction device that produces a three-dimensional (3D) Weyl Hamiltonian with broken inversion symmetry and in which topological phase transitions can be triggered in situ. We argue that currently available superconducting circuit technology allows experiments that probe topological properties inaccessible in condensed matter systems.
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spelling doaj.art-af1775f51ebc488aa0b1c216f3d2faf02024-04-12T17:08:42ZengAmerican Physical SocietyPhysical Review Research2643-15642021-03-013101328810.1103/PhysRevResearch.3.013288Weyl Josephson circuitsValla FatemiAnton R. AkhmerovLandry BretheauWe introduce Weyl Josephson circuits: small Josephson junction circuits that simulate Weyl band structures. We first formulate a general approach to design circuits that are analogous to Bloch Hamiltonians of a desired dimensionality and symmetry class. We then construct and analyze a six-junction device that produces a three-dimensional (3D) Weyl Hamiltonian with broken inversion symmetry and in which topological phase transitions can be triggered in situ. We argue that currently available superconducting circuit technology allows experiments that probe topological properties inaccessible in condensed matter systems.http://doi.org/10.1103/PhysRevResearch.3.013288
spellingShingle Valla Fatemi
Anton R. Akhmerov
Landry Bretheau
Weyl Josephson circuits
Physical Review Research
title Weyl Josephson circuits
title_full Weyl Josephson circuits
title_fullStr Weyl Josephson circuits
title_full_unstemmed Weyl Josephson circuits
title_short Weyl Josephson circuits
title_sort weyl josephson circuits
url http://doi.org/10.1103/PhysRevResearch.3.013288
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AT antonrakhmerov weyljosephsoncircuits
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