Measurement of deep-subwavelength emitter separation in a waveguide-QED system

Abstract

In the waveguide quantum electrodynamics (QED) system, emitter separation plays an important role for its functionality. Here, we present a method to measure the deep-subwavelength emitter separation in a waveguide-QED system. In this method, we can also determine the number of emitters within one diffraction-limited spot. In addition, we also show that ultrasmall emitter separation change can be detected in this system which may then be used as a waveguide-QED-based sensor to measure tiny local temperature/strain variation.

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Cited by in corpus (6)

• Extremely subradiant states in a periodic one-dimensional atomic array
• Multiphoton pulses interacting with multiple emitters in a one-dimensional waveguide
• Quantum state preparation by a shaped photon pulse in one-dimensional continuum
• Topologically protected subradiant cavity polaritons through linewidth narrowing enabled by dissipationless edge states
• Tunable ultrahigh reflection with broadband via collective atom-atom interaction in waveguide-QED system
• Super-Heisenberg-limited Sensing via Collective Subradiance in Waveguide Quantum Electrodynamics