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

Area of Science:

• Quantum information science
• Quantum optics
• Condensed matter physics

Background:

• Photonic qubits are crucial for quantum information technology, typically using optical or infrared photons.
• Current photonic qubits have limitations in control and miniaturization.
• X-rays offer unique advantages like robustness, deep material penetration, and high-resolution focusing.

Purpose of the Study:

• To theoretically demonstrate the dynamic control of x-ray polarization qubits.
• To explore the potential of x-ray qubits for quantum information processing.
• To investigate the use of nuclear Mössbauer resonances for qubit manipulation.

Main Methods:

• Theoretical modeling of x-ray qubit dynamics.
• Utilizing nuclear Mössbauer resonances for qubit control.
• Employing nuclear hyperfine magnetic fields for polarization manipulation.

Main Results:

• Demonstrated theoretical feasibility of dynamically controlling x-ray polarization qubits.
• Showcased precise polarization rotations using nuclear hyperfine magnetic fields.
• Implemented single-qubit and binary logical operations, including a destructive C-NOT gate.

Conclusions:

• X-ray qubits controlled by nuclear Mössbauer resonances represent a promising advancement in quantum information technology.
• The proposed method allows for precise manipulation and processing of x-ray quanta polarization.
• This opens avenues for miniaturized quantum devices and robust quantum computing.