Logical operations with single x-ray photons via dynamically-controlled nuclear resonances

TL;DR

This paper proposes a theoretical method to perform logical operations on polarization-encoded x-ray photons using resonant light-nucleus interactions and dynamic control of nuclear magnetic fields, enabling quantum gate simulation.

Contribution

It introduces a novel approach for implementing quantum logic gates on x-ray photons through nuclear resonance control and magnetic field manipulation.

Findings

Single-qubit gates can be simulated via resonant scattering and magnetic field rotations.

A controlled NOT gate can be realized with an additional control qubit triggering magnetic field changes.

The method offers a new pathway for quantum information processing with x-ray photons.

Abstract

The implementation of logical operations on polarization-encoded x-rays via resonant light-nucleus interactions is theoretically investigated. We show that by means of resonant scattering off nuclei and fast rotations of the nuclear hyperfine magnetic field to control the polarization of the output photon, single-qubit logical gates can be simulated. A second control qubit may be employed to trigger the magnetic field rotation, thus allowing several implementation choices for a controlled NOT gate for x-ray photons.