Two-color electromagnetically induced transparency a mechanical resonator and a qubit
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Two-color electromagnetically induced transparency a mechanical resonator and a qubit
- 发表刊物：
- Phys. Rev. A
- 摘要：
- We discuss level splitting and sideband transitions induced by a modulated coupling between a superconducting
quantum circuit and a nanomechanical resonator. First, we show how to achieve an unconventional time-dependent
longitudinal coupling between a flux (transmon) qubit and the resonator. Considering a sinusoidal modulation
of the coupling strength, we find that a first-order sideband transition can be split into two. Moreover, under the
driving of a red-detuned field, we discuss the optical response of the qubit for a resonant probe field. We show
that level splitting induced by modulating this longitudinal coupling can enable two-color electromagnetically
induced transparency (EIT), in addition to single-color EIT. In contrast to standard predictions of two-color EIT in
atomic systems, we apply here only a single drive (control) field. The monochromatic modulation of the coupling
strength is equivalent to employing two eigenfrequency-tunable mechanical resonators. Both drive-probe detuning
for single-color EIT and the distance between transparent windows for two-color EIT can be adjusted by tuning
the modulation frequency of the coupling.
- 合写作者：
- X. Wang, A. Miranowicz, H.-R. Li, Fu-li Li and F. Nori
- 卷号：
- 98
- 页面范围：
- 023821
- 是否译文：
- 否
- 发表时间：
- 2018-08-13