Possibility of "magic" trapping of three-level system for Rydberg blockade implementation

Abstract

The Rydberg blockade mechanism has shown noteworthy promise for scalable quantum computation with neutral atoms. Both qubit states and gate-mediating Rydberg state belong to the same optically-trapped atom. The trapping fields, while being essential, induce detrimental decoherence. Here we theoretically demonstrate that this Stark-induced decoherence may be completely removed using powerful concepts of "magic" optical traps. We analyze "magic" trapping of a prototype three-level system: a Rydberg state along with two qubit states: hyperfine states attached to a J=1/2 ground state. Our numerical results show that, while such a "magic" trap for alkali metals would require prohibitively large magnetic fields, the group IIIB metals such as Al are suitable candidates.

5 pages, 3 figures

References in corpus (7)

• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• Consequences of Zeeman Degeneracy for van der Waals Blockade between Rydberg Atoms
• Colloquium: Physics of optical lattice clocks
• Many-body Physics with Alkaline-Earth Rydberg lattices
• Rydberg Spectroscopy in an Optical Lattice: Blackbody Thermometry for Atomic Clocks
• Micromagic clock: microwave clock based on atoms in an engineered optical lattice
• Possibility of "magic" co-trapping of two atomic species in optical lattices

Cited by in corpus (5)

• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Analysis of a controlled phase gate using circular Rydberg states
• A New Clock Transition with the Highest Sensitivity to $\alpha$ Variation and Simultaneous Magic Trapping Conditions with Other Clock Transitions in Yb
• Intensity landscape and the possibility of magic trapping of alkali Rydberg atoms in infrared optical lattices
• Possibility of triple magic trapping of clock and Rydberg states of divalent atoms in optical lattices