NMR quantum computing: publications

Robust entangling gate for polar molecules using magnetic and microwave fields

PHYSICAL REVIEW A 101:6 (2020) ARTN 062308

Authors:

Michael Hughes, Matthew D Frye, Rahul Sawant, Gaurav Bhole, Jonathan A Jones, Simon L Cornish, MR Tarbutt, Jeremy M Hutson, Dieter Jaksch, Jordi Mur-Petit

Efficient Hamiltonian programming in qubit arrays with nearest-neighbour couplings

(2020)

Authors:

Takahiro Tsunoda, Gaurav Bhole, Stephen A Jones, Jonathan A Jones, Peter J Leek

Drive-noise tolerant optical switching inspired by composite pulses

(2020)

Authors:

JFF Bulmer, JA Jones, IA Walmsley

Rescaling Interactions for Quantum Control

PHYSICAL REVIEW APPLIED 13:3 (2020) ARTN 034002

Authors:

Gaurav Bhole, Takahiro Tsunoda, Peter J Leek, Jonathan A Jones

Rescaling interactions for quantum control

Physical Review Applied American Physical Society 13:3 (2020) 034002

Authors:

Gaurav Bhole, Takahiro Tsunoda, Peter Leek, Jonathan Jones

Abstract:

A powerful control method in experimental quantum computing is the use of spin echoes, employed to select a desired term in the system’s internal Hamiltonian, while refocusing others. Here, we address a more general problem, describing a method to not only turn on and off particular interactions but also to rescale their strengths so that we can generate any desired effective internal Hamiltonian. We propose an algorithm based on linear programming for achieving time-optimal rescaling solutions in fully coupled systems of tens of qubits, which can be modified to obtain near-time-optimal solutions for rescaling systems with hundreds of qubits.

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