Sökning: "holonomic quantum gates"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden holonomic quantum gates.

  1. 1. Robust non-Abelian geometric phases on three-qubit spin codes

    Master-uppsats, Uppsala universitet/Materialteori

    Författare :Parham Azish; [2024]
    Nyckelord :Quantum information theory; Holonomic quantum computing; non-abelian systems;

    Sammanfattning : Quantum holonomies are non-Abelian Geometric Phases predominantly observed in adiabatic, non-adiabatic, or measurement-based quantum evolutions. Their significance lies in their potential utility within quantum computing due to their robustness against noise throughout the parameter path. LÄS MER

  3. 2. Time-optimal holonomic quantum computation

    L3-uppsats, Uppsala universitet/Materialteori

    Författare :Gabriel O. Alves; [2022]
    Nyckelord :Holonomic quantum computation; Open quantum systems; Non-adiabatic quantum gate; Geometrical phase;

    Sammanfattning : A three-level system can be used in a Λ-type configuration in order to construct auniversal set of non-adiabatic quantum gates through the use of non-Abelian non-adiabatic geometrical phases. Such construction allows for high-speed operation times which diminish the effects of decoherence. LÄS MER

  4. 3. Holonomic Optimal Control for Qudits

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Tomas André; [2022]
    Nyckelord :;

    Sammanfattning : Non-adiabatic Holonomic Quantum Computation (NHQC) is a method used to implement quantum gates with holonomies that arise solely from non-Abelian geometric phases. Due to high noise tolerance these phases can be used to construct resiliant quantum gates. LÄS MER

  5. 4. Adiabatisk genväg till quditberäkning

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Kellen Smith; [2021]
    Nyckelord :adiabatic shortcut; qudit; quantum computation; logic gate; holonomy; geometric phase; robust gates;

    Sammanfattning : One of the major challenges hindering advancement of quantum computing is the sensitive nature of the physical systems used to build a quantum computer. One suggestion for improving reliability is a particular type of logic gates, based on Berry's geometric phase, showing improved robustness to external disturbance of the quantum system over the course of a calculation. LÄS MER

  7. 5. Sequential Holonomic Quantum Gates : Open Path Holonomy in Λ-configuration

    Kandidat-uppsats, Uppsala universitet/Materialteori

    Författare :Emmi Herterich; [2016]
    Nyckelord :Quantum Gate; Holonomy; Geometric Phase;

    Sammanfattning : In the Λ-system, non-adiabatic holonomic quantum phases are used to construct holonomic quantum gates. An interesting approach would be to implement open path holonomies in the Λ-system. By dividing the loop into two curve segments with a unitary transformation between them, universality can be reached. LÄS MER