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Inverse incoherent engineering.

W Ma, X J Cao, S L Wu

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    This summary is machine-generated.

    We developed a new protocol to speed up quantum state engineering in open quantum systems. This method, the inverse incoherent engineering protocol, achieves perfect fidelity for preparing entangled states in two-qubit systems.

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    Area of Science:

    • Quantum Physics
    • Quantum Information Science

    Background:

    • Open quantum systems are challenging for quantum state control due to decoherence.
    • Adiabatic evolution is typically slow, limiting practical applications.

    Purpose of the Study:

    • To develop a protocol for constructing shortcuts to adiabaticity in open quantum systems.
    • To engineer quantum states with high fidelity using a novel approach.

    Main Methods:

    • Utilized dynamical invariants of open quantum systems.
    • Designed a driver Hamiltonian for the adiabatic decoherence free subspaces (TDFs) scheme.
    • Applied the inverse incoherent engineering protocol to a two-qubit system interacting with a squeezed field.

    Main Results:

    • Successfully engineered quantum states from initial to target states with perfect fidelity.
    • Demonstrated the protocol's effectiveness in both adiabatic and nonadiabatic regimes.
    • Prepared maximally entangled states in a two-qubit system.

    Conclusions:

    • The proposed inverse incoherent engineering protocol offers an efficient method for quantum state preparation in open systems.
    • This technique accelerates adiabatic processes, overcoming limitations of traditional methods.
    • The protocol shows promise for applications in quantum information processing and quantum computing.