Efficient preparation and detection of microwave dressed-state qubits and qutrits with trapped ions

Randall, J S, Weidt, S, Standing, E D, Lake, K, Webster, S C, Murgia, D F, Navickas, T, Roth, K and Hensinger, W K (2015) Efficient preparation and detection of microwave dressed-state qubits and qutrits with trapped ions. Physical Review A (PRA), 91 (1). ISSN 1050-2947

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Abstract

We demonstrate a method for preparing and detecting all eigenstates of a three-level microwave dressed system with a single trapped ion. The method significantly reduces the experimental complexity of gate operations with dressed-state qubits, as well as allowing all three of the dressed states to be prepared and detected, thereby providing access to a qutrit that is well protected from magnetic field noise. In addition, we demonstrate individual addressing of the clock transitions in two ions using a strong static magnetic field gradient, showing that our method can be used to prepare and detect microwave dressed states in a string of ions when performing multi-ion quantum operations with microwave and radio frequency fields. The individual addressability of clock transitions could also allow for the control of pairwise interaction strengths between arbitrary ions in a string using lasers.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
Depositing User: Winfried Hensinger
Date Deposited: 08 Feb 2015 15:51
Last Modified: 07 Mar 2017 06:16
URI: http://sro.sussex.ac.uk/id/eprint/52412

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Project NameSussex Project NumberFunderFunder Ref
Ion trap arrays for scalable quantum computing.G0294EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/E011136/1
Quantum technology with nanofabricated ion trap chipsG0308EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/G007276/1
Integrated Quantum Information TechnologyG0650EUROPEAN UNIONGA 270843