Decoherence of a solid-state qubit by different noise correlation spectra

PAULA I. VILLAR; FERNANDO C. LOMBARDO

PHYSICS LETTERS A

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2015 vol. 379 p. 246 - 254

0375-9601

The interaction between solid-state qubits and their environmental degrees of freedom produces non- unitary effects like decoherence and dissipation. Uncontrolled decoherence is one of the main obstacles that must be overcome in quantum information processing. We study the dynamical decay of coherences in a solid-state qubit by means of the use of a master equation. We analyse the effects induced by thermal ohmic environments and low-frequency 1/f noise. We focus on the effect of longitudinal and transversal noise on the superconducting qubit?s dynamics. Our results can be used to design experimental future setups when manipulating superconducting qubits.