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We predict novel quantum acoustic phenomena using tunable solid-state spins in diamond coupled to optomechanical crystals. This enables new quantum sound-matter interactions and applications in quantum simulations.

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Area of Science:

  • Quantum phononics
  • Solid-state physics
  • Optomechanics

Background:

  • Quantum sound-matter interactions are crucial for quantum technologies.
  • Solid-state platforms offer tunable environments for exploring quantum phenomena.

Purpose of the Study:

  • To predict unusual quantum acoustic phenomena in a tunable solid-state platform.
  • To explore sound-matter interactions using diamond spins and optomechanical crystals.

Main Methods:

  • Coupling an array of solid-state spins in diamond to quantized acoustic waves.
  • Utilizing a spatially varying laser drive to tune the mechanical band structure in situ.
  • Investigating spin-resonance and band-gap conditions for novel interactions.

Main Results:

  • Demonstrated tunable quasichiral sound-matter interactions, ranging from bidirectional to quasiunidirectional.
  • Observed an exotic polariton bound state in the acoustic band gap.
  • Showcased the mediation of long-range, tunable, complex spin-spin interactions via the polariton bound state.

Conclusions:

  • The tunable solid-state platform enables unprecedented control over quantum sound-matter interactions.
  • The predicted phenomena, including polariton bound states, offer new avenues for quantum simulations and information processing.
  • This work expands the field of quantum phononics with potential for significant technological advancements.