MODULATION OF ORDER PARAMETER OF EXCITON BOSE-EINSTEIN CONDENSATE IN A RING
2004 ◽
Vol 18
(27n29)
◽
pp. 3797-3802
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Keyword(s):
The Mean
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We have studied theoretically the Bose-Einstein condensation (BEC) of two-dimensional excitons in a ring with a random variation of the effective exciton potential along the circumference. We derive a nonlinear Gross-Pitaevkii equation (GPE) for such a condensate, which is valid even in the presence of a weak magnetic field. For several types of the random potentials our numerical solution of the ground state of the GPE displays a necklace-like structure. This is a consequence of the interplay between the random potential and a strong nonlinear repulsive term of the GPE. We have investigated how the mean distance between modulation peaks depends on properties of the random potentials.
2015 ◽
Vol 24
(12)
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pp. 1544001
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Keyword(s):
2021 ◽
Vol 2103
(1)
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pp. 012200
2020 ◽
Vol 35
(26)
◽
pp. 2050227
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Keyword(s):
1995 ◽
Vol 50
(10)
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pp. 921-930
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2010 ◽
Vol 161
(3-4)
◽
pp. 334-347
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Keyword(s):
2008 ◽
Vol 17
(10)
◽
pp. 2150-2154
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