Microwave Susceptibility Observation of Interacting Many-Body Andreev States
V. Fatemi, P. D. Kurilovich, M. Hays, D. Bouman, T. Connolly, S. Diamond, N. E. Frattini, V. D. Kurilovich, P. Krogstrup, J. Nygård, A. Geresdi, L. I. Glazman, M. H. Devoret
DOI 10.1103/PhysRevLett.129.227701 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Electrostatic charging affects the many-body spectrum of Andreev states, yet its influence on their microwave properties has not been elucidated. We developed a circuit quantum electrodynamics probe that, in addition to transition spectroscopy, measures the microwave susceptibility of different states of a semiconductor nanowire weak link with a single dominant (spin-degenerate) Andreev level. We found that the microwave susceptibility does not exhibit a particle-hole symmetry, which we qualitatively explain as an influence of Coulomb interaction. Moreover, our state-selective measurement reveals a large, π-phase shifted contribution to the response common to all many-body states which can be interpreted as arising from a phase-dependent continuum in the superconducting density of states.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Multiple Andreev Reflections Revealed by the Energy Distribution of Quasiparticles
similarity 0.95F. Pierre et al.
Source status unknown — claims are unverified
Dynamics of quasiparticle trapping in Andreev levels
similarity 0.95D. G. Olivares et al.
Source status unknown — claims are unverified
Theory of microwave spectroscopy of Andreev bound states with a Josephson junction
similarity 0.94L. Bretheau et al.
Source status unknown — claims are unverified
Spectrum of Andreev Bound States in a Molecule Embedded Inside a Microwave-Excited Superconducting Junction
similarity 0.94Jonas Sköldberg et al.
Source status unknown — claims are unverified
Coupled superconducting qudit-resonator system: Energy spectrum, state population, and state transition under microwave drive
similarity 0.94W. Y. Liu et al.
Source status unknown — claims are unverified
Conductance quantization and Andreev reflection in narrow ferromagnet/superconductor point contacts
similarity 0.93K. Kikuchi et al.
Source status unknown — claims are unverified