Constructing Qubit Edge States by Inverse-Designing the Electromagnetic Environment.

Area of Science:

• Quantum photonics
• Topological materials science
• Computational physics

Background:

• Topological photonics offers novel ways to control light-matter interactions.
• Computational optimization techniques are advancing material design.
• Qubit interactions are key for quantum information processing.

Purpose of the Study:

• To inverse-design a dielectric structure for interacting qubits.
• To emulate an extended, dimerized Su-Schrieffer-Heeger excitonic model.
• To explore the emergence and robustness of topological edge states.

Main Methods:

• Utilizing advances in topological photonics and computational optimization.
• Designing a periodic dielectric structure around a qubit chain.
• Systematically tuning structural parameters to analyze coherent and dissipative effects.

Main Results:

• Precise control over photon-mediated qubit interactions was achieved.
• Topological edge states were shown to be robust and isolated from the bulk.
• Key topological properties were preserved despite disorder and deviations from chiral symmetry.

Conclusions:

• Inverse design is effective in stabilizing topological excitonic states.
• The designed structures offer robust topological properties for qubit systems.
• This approach opens new avenues for advanced quantum technologies.