تقرير
Impulsively Excited Gravitational Quantum States: Echoes and Time-resolved Spectroscopy
| العنوان: | Impulsively Excited Gravitational Quantum States: Echoes and Time-resolved Spectroscopy |
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| المؤلفون: | Tutunnikov, I., Rajitha, K. V., Voronin, A. Yu., Nesvizhevsky, V. V., Averbukh, I. Sh. |
| المصدر: | Phys. Rev. Lett. 126, 170403 (2021) |
| سنة النشر: | 2020 |
| المجموعة: | High Energy Physics - Phenomenology Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, High Energy Physics - Phenomenology, Physics - Atomic Physics, Physics - Instrumentation and Detectors |
| الوصف: | We theoretically study an impulsively excited quantum bouncer (QB) - a particle bouncing off a surface in the presence of gravity. A pair of time-delayed pulsed excitations is shown to induce a wave-packet echo effect - a partial rephasing of the QB wave function appearing at twice the delay between pulses. In addition, an appropriately chosen observable [here, the population of the ground gravitational quantum state (GQS)] recorded as a function of the delay is shown to contain the transition frequencies between the GQSs, their populations, and partial phase information about the wave packet quantum amplitudes. The wave-packet echo effect is a promising candidate method for precision studies of GQSs of ultra-cold neutrons, atoms, and anti-atoms confined in closed gravitational traps. Comment: 7 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.126.170403 |
| URL الوصول: | http://arxiv.org/abs/2009.11755 |
| رقم الأكسشن: | edsarx.2009.11755 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.126.170403 |
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