Journal
PHYSICAL REVIEW B
Volume 103, Issue 22, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.103.224401
Keywords
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Funding
- Air Force Office of Scientific Research [FA9550-20-1-0366]
- Robert A. Welch Foundation [A-1943]
- Herman F. Heep and Minnie Belle Heep Texas A&M University Endowed Fund
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The study demonstrates the remote transfer of bistability in a two-mode system with lower pumping threshold for dissipatively coupled systems. A long-lived mode emerges due to dissipative coupling and nonlinearity, responsible for heightened transmission levels and pronounced sensitivity in signal propagation.
The prospect of a system possessing two or more stable states for a given excitation condition is of topical interest with applications in information processing networks. In this work, we establish the remote transfer of bistability from a nonlinear resource in a dissipatively coupled two-mode system. As a clear advantage over coherently coupled settings, the dissipative nature of interaction is found to support a lower pumping threshold for bistable signals. For comparable parameters, the bistability threshold for dissipatively coupled systems is lower by a factor of about 5. The resulting hysteresis can be studied spectroscopically by applying a probe field through the waveguide and examining the polariton character of the transmitted field. Our model is generic, apropos of an extensive set of quantum systems, and we demonstrate our results in the context of magnonics where experimental interest has flourished of late. As a consequence of dissipative coupling and the nonlinearity, a long-lived mode emerges, which is responsible for heightened transmission levels and pronounced sensitivity in signal propagation through the fiber.
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