High fidelity quantum gates via dynamical decoupling

Abstract

Realizing the theoretical promise of quantum computers will require overcoming decoherence. Here we demonstrate numerically that high fidelity quantum gates are possible within a framework of quantum dynamical decoupling. Orders of magnitude improvement in the fidelities of a universal set of quantum gates, relative to unprotected evolution, is achieved over a broad range of system-environment coupling strengths, using recursively constructed (concatenated) dynamical decoupling pulse sequences.

Slightly expanded form of the journal version. Also includes the supplementary material as an appendix

References in corpus (12)

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Cited by in corpus (14)

• Quantum Decoherence
• Decoherence-protected quantum gates for a hybrid solid-state spin register
• Nonperturbative Leakage Elimination Operators and Control of a Three-Level System
• Experimental protection of quantum gates against decoherence and control errors
• Robust quantum gates for stochastic time-varying noise
• Random Control over Quantum Open Systems
• Topological Dynamical Decoupling
• Fault-tolerant breathing pattern in optical lattices as a dynamical quantum memory
• Protecting dissipative quantum state preparation via dynamical decoupling
• Uhrig Dynamical Control of a Three-Level System Via Non-Markovian Quantum State Diffusion
• Extending quantum control of time-independent systems to time-dependent systems
• Suppression of effective noise in Hamiltonian simulations
• Robust Dynamical Decoupling for the Manipulation of a Spin Network via a Single Spin
• O(1) benchmarking of precise rotation in a spin-squeezed Bose-Einstein condensate