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Universal hybrid quantum computing in trapped ions
R. T. Sutherland, R. Srinivas
Using discrete and continuous variable subsystems, hybrid approaches to quantum information could enable more quantum computational power for the same physical resources. Here, we…
Motional squeezing for trapped ion transport and separation
R. T. Sutherland, S. C. Burd, D. H. Slichter +2
Transport, separation, and merging of trapped ion crystals are essential operations for most large-scale quantum computing architectures. In this work, we develop a theoretical fra…
High-fidelity laser-free universal control of two trapped ion qubits
R. Srinivas, S. C. Burd, H. M. Knaack +9
Universal control of multiple qubits -- the ability to entangle qubits and to perform arbitrary individual qubit operations -- is a fundamental resource for quantum computation, si…
Laser-free trapped-ion entangling gates with simultaneous insensitivity to qubit and motional decoherence
R. T. Sutherland, R. Srinivas, S. C. Burd +7
The dominant error sources for state-of-the-art laser-free trapped-ion entangling gates are decoherence of the qubit state and the ion motion. The effect of these decoherence mecha…
Trapped-ion spin-motion coupling with microwaves and a near-motional oscillating magnetic field gradient
R. Srinivas, S. C. Burd, R. T. Sutherland +5
We present a new method of spin-motion coupling for trapped ions using microwaves and a magnetic field gradient oscillating close to the ions' motional frequency. We demonstrate an…
Versatile laser-free trapped-ion entangling gates
R. T. Sutherland, R. Srinivas, S. C. Burd +6
We present a general theory for laser-free entangling gates with trapped-ion hyperfine qubits, using either static or oscillating magnetic-field gradients combined with a pair of u…