Control Protocol for Dynamic Synthesis of Qubit and Qudit Gates Using Photonic Pulses and Magnetic Fields

Abstract

We propose a theoretical control protocol designed for the dynamic synthesis of single qubit and four-level qudit quantum gates using external parameters, such as photonic Gaussian pulses and magnetic fields, in a microcavity quantum well system. Our approach takes advantage of tunable coherent light matter interactions that can be modulated by the magnetic field between the exciton and negative trion coupled to the lowest photonic mode. We demonstrate that it is possible to achieve precise manipulation of populations of encoded quantum states through the unitary evolution of the system. In particular, we illustrate our optimization method for generating a single qubit gate with a mean fidelity of 99.99 as well as the realization of an iSWAP gate in the four level qudit case with a fidelity of 99.6.

References in corpus (23)

• Quantised Vortices in an Exciton-Polariton Fluid
• Exciton-polariton condensates
• New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds
• Bose-Einstein Condensation of Long-Lifetime Polaritons in Thermal Equilibrium
• Quantum complementarity of microcavity polaritons
• Exciton-Photonics: From Fundamental Science to Applications
• Spin coherence of a two-dimensional electron gas induced by resonant excitation of trions and excitons in CdTe/(Cd,Mg)Te quantum wells
• Restless Tuneup of High-Fidelity Qubit Gates
• Qubits based on Polariton Rabi Oscillators
• Dynamic Stark Effect in Strongly Coupled Microcavity Exciton-Polaritons
• Two qubit conditional quantum logic operation in a single self-assembled quantum dot
• High-fidelity software-defined quantum logic on a superconducting qudit
• Magnetic field tuning of exciton polaritons in a semiconductor microcavity
• Exciton-Polariton Quantum Gates Based on Continuous Variables
• Spin-noise-based magnetometry of an $n$-doped GaAs microcavity in the field of elliptically polarized light
• Exciton-Trion-Polaritons in Two-Dimensional Materials
• All optical Controlled-NOT quantum gate based on an exciton-polariton circuit
• Positively charged magneto-excitons in a semiconductor quantum well
• Qubit Analog with Polariton Superfluid in an Annular Trap
• Rydberg Exciton-Polaritons in a Magnetic Field
• Coherent control of the dynamics of single quantum-dot exciton qubit in a cavity
• Spin polarization and magneto-luminescence of confined electron-hole systems
• Analytic Coulomb matrix elements in a three-dimensional geometry