Dissipative effects in Josephson qubits
Abstract
Recent experiments with Josephson junctions have demonstrated long coherence times, a property crucial for their use in quantum information processing. Motivated by these experiments, we analyze the effect of the low-frequency noise with a singular power spectrum (e.g., the 1/ f noise) on the coherence of Josephson qubits. We pay special attention to higher-order contributions of the noise to the dissipative effects in the qubits' dynamics.
- Publication:
-
Chemical Physics
- Pub Date:
- January 2004
- DOI:
- 10.1016/j.chemphys.2003.09.025
- arXiv:
- arXiv:cond-mat/0309049
- Bibcode:
- 2004CP....296..315M
- Keywords:
-
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Condensed Matter - Superconductivity
- E-Print:
- A tutorial prepared for the Proceedings of "New Directions in Mesoscopic Physics" (Erice, 2002)