Spectrum of Andreev Bound States in a Molecule Embedded Inside a Microwave-Excited Superconducting Junction
| dc.creator | Skoldberg, Jonas | |
| dc.creator | Lofwander, Tomas | |
| dc.creator | Shumeiko, Vitaly S. | |
| dc.creator | Fogelstrom, Mikael | |
| dc.date | 2008-01-23 | |
| dc.date | 2008-09-15 | |
| dc.date.accessioned | 2026-07-07T10:02:25Z | |
| dc.date.available | 2026-07-07T10:02:25Z | |
| dc.description | Non-dissipative Josephson current through nanoscale superconducting constrictions is carried by spectroscopically sharp energy states, so-called Andreev bound states. Although theoretically predicted almost 40 years ago, no direct spectroscopic evidence of these Andreev bound states exists to date. We propose a novel type of spectroscopy based on embedding a superconducting constriction, formed by a single-level molecule junction, in a microwave QED cavity environment. In the electron-dressed cavity spectrum we find a polariton excitation at twice the Andreev bound state energy, and a superconducting-phase dependent ac Stark shift of the cavity frequency. Dispersive measurement of this frequency shift can be used for Andreev bound state spectroscopy. | |
| dc.description | Published version; 4+ pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0801.3608 | |
| dc.identifier | http://arxiv.org/abs/0801.3608 | |
| dc.identifier | Physical Review Letters 101 087002 (2008) | |
| dc.identifier | doi:10.1103/PhysRevLett.101.087002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/168968 | |
| dc.subject | Superconductivity | |
| dc.title | Spectrum of Andreev Bound States in a Molecule Embedded Inside a Microwave-Excited Superconducting Junction | |
| dc.type | text |