Variational tight-binding method for simulating large superconducting circuits
arXiv:2104.14377 · doi:10.1103/PhysRevResearch.3.033244
Abstract
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.
arXiv comment10 + 1 pages, 6 figures, 1 table
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Cited by in corpus (5)
- Hamiltonian Extrema of an Arbitrary Flux-Biased Josephson Circuit
- Bound states without potentials: localization at singularities
- Systematic Construction of Time-Dependent Hamiltonians for Microwave-Driven Josephson Circuits
- Exact amplitudes of parametric processes in driven Josephson circuits
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