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

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.

8 pages

References in corpus (4)

• High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
• Efficient Toffoli Gates Using Qudits
• Individual addressing of trapped ions and coupling of motional and spin states using rf radiation
• Generation of spin-motion entanglement in a trapped ion using long-wavelength radiation

Cited by in corpus (3)

• Experimental Realization of a Quantum Integer-Spin Chain with Controllable Interactions
• Single qudit realization of the Deutsch algorithm using superconducting many-level quantum circuits
• Ground-state cooling of a trapped ion using long-wavelength radiation