Essays about: "quantum gate"

Showing result 11 - 15 of 35 essays containing the words quantum gate.

1. 11. Time-optimal holonomic quantum computation

   University essay from Uppsala universitet/Materialteori

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

   Abstract : 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. READ MORE

3. 12. Genuine geometric quantum gates induced by non-cyclic geodesic evolution of computational basis

   University essay from Uppsala universitet/Materialteori

   Author : Nils Eivarsson; [2022]
   Keywords : quantum computation; geometric phase;

   Abstract : To reach the error threshold required to successfully perform error-correcting algorithms in quantum computers, geometric quantum gates have been considered because of their natural resilience against noise. Non-cyclic geometric gates have been proposed to reduce the run time of conventional geometric gates, to further guard against decoherence. READ MORE

4. 13. Holonomic Optimal Control for Qudits

   University essay from Uppsala universitet/Institutionen för informationsteknologi

   Author : Tomas André; [2022]
   Keywords : ;

   Abstract : 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. READ MORE

5. 14. Studies on Reverse Engineering of Constant Frequence Geometric Quantum Gates

   University essay from Uppsala universitet/Materialteori

   Author : Wu Zijin; [2022]
   Keywords : ;

   Abstract : Geometric Quantum Computation (GQC) is one of the effective methods to realizequantum computation. By using geometric phases, it shows robustness to certainerrors. This thesis aims to develop a new systematic technique for implementing GQC,especially in non-adiabatic systems. READ MORE

6. 15. Adiabatic Shortcut to Geometric Quantum Computation in Noiseless Subsystems

   University essay from Uppsala universitet/Materialteori

   Author : Anton Gregefalk; [2021]
   Keywords : Quantum computer; Spin echo; Adiabatic shortcut; Berry s phase; Noiseless subsystems; Kvantdator; spinn eko; adiabatisk genväg; Berrys fas; Brusfria delsystem;

   Abstract : Quantum computers can theoretically perform certain tasks which classical computers at realistic times could not. Operating a quantum computer requires precise control over the system, for instance achieved by adiabatic evolution, and isolation from the environment to retain coherence. READ MORE