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Updated: Jan 25, 2026

Gradient Echo Quantum Memory in Warm Atomic Vapor

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Published on: November 11, 2013

Environment-Assisted Holonomic Quantum Maps.

Nicklas Ramberg¹, Erik Sjöqvist¹

¹Department of Physics and Astronomy, Uppsala University, Box 516, Se-751 20 Uppsala, Sweden.

Physical Review Letters

|May 4, 2019

Summary

This summary is machine-generated.

This study enhances holonomic quantum computation by using a structured environment to improve error resilience in nonadiabatic holonomic gates, reducing sensitivity to systematic parameter errors.

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Area of Science:

Quantum Information Science
Quantum Computation
Condensed Matter Physics

Background:

Holonomic quantum computation leverages non-Abelian geometric phases for error-resilient quantum gates.
Nonadiabatic holonomic gates offer high-speed operation, minimizing decoherence.
Existing methods are sensitive to systematic parameter errors.

Purpose of the Study:

To broaden the error resilience of nonadiabatic holonomic gates.
To incorporate protection against systematic parameter errors.
To develop an environment-assisted quantum computation scheme.

Main Methods:

Interacting the computational system with a structured environment.
Maintaining the geometric properties of quantum evolution.
Utilizing a proof-of-concept spin-bath model.

Main Results:

Demonstrated an environment-assisted holonomic quantum map mimicking holonomic gates.
Showcased widened error resilience against systematic parameter errors.
Reduced sensitivity to systematic errors in the spin-bath model.

Conclusions:

Structured environments can enhance error resilience in nonadiabatic holonomic quantum computation.
Environment-assisted holonomic quantum maps offer a viable strategy for robust quantum gates.
The proposed scheme provides a pathway towards more fault-tolerant quantum computing.