کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1863394 1037654 2016 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gravitational decoherence for mesoscopic systems
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Gravitational decoherence for mesoscopic systems
چکیده انگلیسی


• An extension of gravitationally induced decoherence is proposed.
• The decoherence effect is conveniently expressed in terms of the energy variance.
• A proof that the interferometric visibility is bounded from below is given.
• The competition between gravitational and collisional decoherence is studied.

We extend the recent gravitational decoherence analysis of Pikovski et al. to an individual mesoscopic system with internal state characterized by a coherent superposition of energy eigenstates. We express the Pikovski et al. effect directly in terms of the energy variance, and show that the interferometric visibility is bounded from below. Hence unlike collisional decoherence, the visibility does not approach zero at large times, although for a large system it can become very small.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 380, Issue 3, 28 January 2016, Pages 390–393
نویسندگان
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