Near-Optimal Dynamical Decoupling of a Qubit

2009/08/31 by Jacob R. West, Jacob West, Bryan H. Fong +1 · 7 citations
Computer Science · Physics and Astronomy · #Decoupling (probability) #Dynamical decoupling #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum chaos and dynamical systems #Quantum mechanics #Qubit #Statistical physics #quant-ph

paper · pdf · doi:10.1103/physrevlett.104.130501

published as Phys. Rev. Lett. 104, 130501 (2010) · v2: corrected references

arxiv created 2009/09/01 · openalex publication_date 2010/04/01 · arxiv updated 2010/04/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We present a near-optimal quantum dynamical decoupling scheme that eliminates general decoherence of a qubit to order n using O(n2) pulses, an exponential decrease in pulses over all previous decoupling methods. Numerical simulations of a qubit coupled to a spin bath demonstrate the superior performance of the new pulse sequences.

Citations

• Solid-state quantum memory using the 31P nuclear spin
• Distance bounds on quantum dynamics
• Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots

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