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Variational tight-binding method for simulating large superconducting circuits

delete2021-09-13
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OA
AI
D
Daniel Weiss *
W
Wade DeGottardi
J
Jens Koch
D
David Ferguson
DOI:10.1103/PhysRevResearch.3.033244delete
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Abstract

Abstract

En 中文
We generalize solid-state tight-binding techniques for the spectral analysis of large superconducting circuits. We find that tight-binding states can be better suited for approximating the low-energy excitations than charge basis states, as illustrated for the interesting example of the current-mirror circuit. The use of tight binding can dramatically lower the Hilbert-space dimension required for convergence to the true spectrum, and allows for the accurate simulation of larger circuits that are out of reach of charge basis diagonalization.
Keywords:
EXPONENTIAL OPERATORS
QUANTUM

Journal

Physical Review Research cover
Physical Review Research
IF:
4.2
Papers:
7.6K
Citations:
2.7W

Organization

N
northrop grumman corporation
Scholars:
302
Papers: 164
Citations: 0
N
Northwestern University
Scholars:
6.1W
Papers: 5.3W
Citations: 3.9K