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Title: Majorana pair based qubits for fault tolerant quantum computing architecture using superconducting gold surface states

Abstract

Under certain conditions, a fermion in a superconductor can separate in space into two parts known as Majorana zero modes, which are immune to decoherence from local noise sources and are attractive building blocks for quantum computers. Here we disclose a metal-based heterostructure platform to produce these Majorana zero modes which utilizes the surface states of certain metals in combination with a ferromagnetic insulator and a superconductor. This platform has the advantage of having a robust energy scale and the possibility of realizing complex circuit designs using lithographic methods. The Majorana zero modes are interrogated using planar tunnel junctions and electrostatic gates to selectively tunnel into designated pairs of Majorana zero modes. We give example of qubit designs and circuits that are particularly suitable for the metal-based heterostructures.

Inventors:
; ; ;
Issue Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF); US Office of Naval Research (ONR)
OSTI Identifier:
1840374
Patent Number(s):
11100419
Application Number:
16/867,601
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
G - PHYSICS G06 - COMPUTING G06N - COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
DOE Contract Number:  
DMR1207469; DMR1700137; FG02-03ER46076; N00014-13-1-0301; N00014-16-1-2657
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/06/2020
Country of Publication:
United States
Language:
English

Citation Formats

Moodera, Jagadeesh S., Lee, Patrick A., Wei, Peng, and Manna, Sujit. Majorana pair based qubits for fault tolerant quantum computing architecture using superconducting gold surface states. United States: N. p., 2021. Web.
Moodera, Jagadeesh S., Lee, Patrick A., Wei, Peng, & Manna, Sujit. Majorana pair based qubits for fault tolerant quantum computing architecture using superconducting gold surface states. United States.
Moodera, Jagadeesh S., Lee, Patrick A., Wei, Peng, and Manna, Sujit. Tue . "Majorana pair based qubits for fault tolerant quantum computing architecture using superconducting gold surface states". United States. https://www.osti.gov/servlets/purl/1840374.
@article{osti_1840374,
title = {Majorana pair based qubits for fault tolerant quantum computing architecture using superconducting gold surface states},
author = {Moodera, Jagadeesh S. and Lee, Patrick A. and Wei, Peng and Manna, Sujit},
abstractNote = {Under certain conditions, a fermion in a superconductor can separate in space into two parts known as Majorana zero modes, which are immune to decoherence from local noise sources and are attractive building blocks for quantum computers. Here we disclose a metal-based heterostructure platform to produce these Majorana zero modes which utilizes the surface states of certain metals in combination with a ferromagnetic insulator and a superconductor. This platform has the advantage of having a robust energy scale and the possibility of realizing complex circuit designs using lithographic methods. The Majorana zero modes are interrogated using planar tunnel junctions and electrostatic gates to selectively tunnel into designated pairs of Majorana zero modes. We give example of qubit designs and circuits that are particularly suitable for the metal-based heterostructures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {8}
}

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