Optical tomography dynamics induced by qubit-resonator interaction under intrinsic decoherence.

Area of Science:

• Quantum computing
• Superconducting circuits
• Quantum optics

Background:

• Superconducting circuits with qubits and resonators are key for quantum computing.
• Understanding quantum coherence dynamics is crucial for developing robust quantum systems.
• Intrinsic decoherence affects the stability and evolution of quantum states.

Purpose of the Study:

• To investigate optical tomography as a quantifier of quantum coherence in a qubit-resonator system.
• To examine the influence of qubit-resonator detuning and intrinsic decoherence on quantum coherence dynamics.
• To establish the relationship between optical tomography and generated quantum coherence.

Main Methods:

• Theoretical consideration of a superconducting circuit with a coupled qubit and resonator.
• Analysis of quantum coherence dynamics using optical tomography.
• Numerical simulations to study the effects of detuning and decoherence.

Main Results:

• Optical tomography effectively quantifies quantum coherence generated by qubit-resonator interaction.
• The dynamics of optical tomography distributions are significantly influenced by detuning and decoherence.
• Increased detuning and decoherence lead to substantial changes in the amplitude, intensity, and structure of optical tomography.

Conclusions:

• Optical tomography is a valuable tool for characterizing quantum coherence in superconducting circuits.
• Qubit-resonator detuning and intrinsic decoherence are critical factors modulating quantum state dynamics.
• The study highlights the interplay between system parameters and observable quantum properties.