Universal Set of Gates for Microwave Dressed-State Quantum Computing

• Main Authors: Mikelsons, Gatis, Cohen, Itsik, Retzker, Alex, Plenio, Martin B
• Format: Journal Article
• Language: English
• Published: 28-05-2015
• Subjects: Physics - Quantum Physics
• DOI: 10.48550/arxiv.1410.6720

New J. Phys. 17 (2015) 053032 We propose a set of techniques that enable universal quantum computing to be
carried out using dressed states. This applies in particular to the effort of
realising quantum computation in trapped ions using long-wavelength radiation,
where coupling enhancement is achieved by means of static magnetic-field
gradient. We show how the presence of dressing fields enables the construction
of robust single and multi-qubit gates despite the unavoidable presence of
magnetic noise, an approach that can be generalised to provide shielding in any
analogous quantum system that relies on the coupling of electronic degrees of
freedom via bosonic modes.