Simple Manipulation of a Microwave Dressed-State Ion Qubit

Autor: Webster, S. C., Weidt, S., Lake, K., McLoughlin, J. J., Hensinger, W. K.
Rok vydání: 2013
Předmět:
Zdroj: Phys. Rev. Lett. 111, 140501 (2013)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.111.140501
Popis: Many schemes for implementing quantum information processing require that the atomic states used have a non-zero magnetic moment, however such magnetically sensitive states of an atom are vulnerable to decoherence due to fluctuating magnetic fields. Dressing an atom with an external field is a powerful method of reducing such decoherence [N. Timoney et al., Nature 476, 185], even if the states being dressed are strongly coupled to the environment. We introduce an experimentally simpler method of manipulating such a dressed-state qubit, which allows the implementation of general rotations of the qubit, and demonstrate this method using a trapped ytterbium ion.
Comment: 5 pages, 4 figures
Databáze: arXiv