Effect of Measurement on the Periodicity of the Coulomb Staircase of a Superconducting Box
J. Männik, J. E. Lukens
DOI 10.1103/PhysRevLett.92.057004 · 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
We report on the effect of the backaction of a single Cooper pair transistor electrometer (E) on the charge state of a superconducting box (B). The charge is e periodic in the gate bias of B when E is operated near voltages 2Δ/e or 4Δ/e. We show that this is due to quasiparticle poisoning of B at a rate proportional to the number of quasiparticle tunneling events in E per second. We are able to eliminate this backaction and recover 2e-charge periodicity using a new measurement method based on switching-current modulation of E.
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
Spectral Signatures of Nontrivial Topology in a Superconducting Circuit
similarity 0.93L. Peyruchat et al.
Source status unknown — claims are unverified
Dynamics of parametric fluctuations induced by quasiparticle tunneling in superconducting flux qubits
similarity 0.93M. Bal et al.
Source status unknown — claims are unverified
Circuit quantum electrodynamics with a superconducting quantum point contact
similarity 0.93G. Romero et al.
Source status unknown — claims are unverified
Dynamical quantum phase transitions in a mesoscopic superconducting system
similarity 0.93K. Wrześniewski et al.
Source status unknown — claims are unverified
Transient Dynamics of a Superconducting Nonlinear Oscillator
similarity 0.93P. Bhupathi et al.
Source status unknown — claims are unverified
Spectroscopy on Two Coupled Superconducting Flux Qubits
similarity 0.93J. B. Majer et al.
Source status unknown — claims are unverified