Decoherence, pointer engineering and quantum state protection

2000/09/06 by A. R. R. Carvalho, P. Milman, Carvalho, A. R. R. +5 · 2 citations
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Physical Unclonable Functions (PUFs) and Hardware Security #Quantum Physics (quant-ph) #quant-ph

paper · pdf · doi:10.48550/arxiv.quant-ph/0009024

1 figure

arxiv created 2000/09/06 · openalex publication_date 2000/09/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a proposal for protecting states against decoherence, based on the engineering of pointer states. We apply this procedure to the vibrational motion of a trapped ion, and show how to protect qubits, squeezed states, approximate phase eigenstates and superpositions of coherent states.

Cited by

• Experimental Realization of Thermal Reservoirs with Tunable Temperature in a Trapped-Ion Spin-Boson Simulator
• Speeding up thermalization and quantum state preparation through engineered quantum collisions

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