Probing electromagnetic nonreciprocity with the quantum geometry of photonic states

ORAL

Abstract

The integration of quantum materials with photonic platforms has seen enormous growth in recent years. Such devices offer enormous potential for developing advanced technologies for sensing and characterization by incorporating quantum and nonlinear effects into the dynamics of photonic modes. Here, we propose such an integrated device – a superconducting cross resonator integrated with a quantum material that intrinsically breaks time-reversal symmetry. We show how the electromagnetic properties of the material are encoded in the dynamics of the photonic states and formulate a measuring protocol that can be used to sensitively measure small nonreciprocal responses, e.g., through magnetic or chiral topological order. Our process tomography method hinges on utilizing the quantum geometry of photonic wavefunctions, and represents a concrete application of quantum metrology across a broad spectrum of experimental platforms including Fock states in optical cavities, or coherent states in microwave and THz resonators.

* Quantum Science Center (QSC)

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Presenters

  • Ioannis Petrides

    UCLA, College of Letters and Science, University of California, Los Angeles (UCLA), University of California, Los Angeles

Authors

  • Ioannis Petrides

    UCLA, College of Letters and Science, University of California, Los Angeles (UCLA), University of California, Los Angeles

  • Jonathan B Curtis

    UCLA, University of California, Los Angeles

  • Marie E Wesson

    Harvard University

  • Amir Yacoby

    Harvard University

  • Prineha Narang

    College of Letters and Science, University of California, Los Angeles (UCLA), CA, USA., University of California Los Angeles, College of Letters and Science, University of California, Los Angeles (UCLA), UCLA, University of California, Los Angeles, College of Letters and Science, University of California, Los Angeles, Harvard University