Acoustic spin resonance in polariton condensates

@misc{saltykova2026acoustic,
  title = {{Acoustic spin resonance in polariton condensates}},
  author = {D. A. Saltykova and A. Kudlis and A. V. Yulin and I. A. Shelykh},
  howpublished = {arXiv},
  year = {2026},
  month = may,
  doi = {10.48550/arxiv.2605.16236},
  eprint = {2605.16236},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.16236},
}

TY  - UNPB
TI  - Acoustic spin resonance in polariton condensates
AU  - D. A. Saltykova
AU  - A. Kudlis
AU  - A. V. Yulin
AU  - I. A. Shelykh
PY  - 2026
DA  - 2026/05/15
PB  - arXiv
DO  - 10.48550/arxiv.2605.16236
UR  - https://arxiv.org/abs/2605.16236
AB  - We theoretically investigate acoustic spin resonance in a spatially homogeneous spinor polariton condensate. A longitudinal acoustic wave generates a time-periodic strain-induced effective magnetic field acting on the condensate pseudospin. When this field is transverse to the static in-plane linear-polarization splitting, it resonantly drives polarization oscillations. We show that spin-dependent interactions shift the resonance and produce nonlinear line shapes, while gain, reservoir dynamics, and spin relaxation make the response dissipative and history-dependent, producing amplitude hysteresis. In the presence of lifetime anisotropy, the condensate can develop a bifurcated stationary state with finite circular polarization, and a resonant acoustic drive can switch between the corresponding out-of-plane branches. A Zeeman splitting provides an additional conservative knob for tuning the resonance frequency. Our results identify coherent acoustic driving as a route to resonant, nonlinear, and switchable control of polariton pseudospin dynamics.
ER  -