Analogue gravity on a superconducting chip
نویسندگان
چکیده
منابع مشابه
Analogue Gravity
Analogue gravity is a research programme which investigates analogues of general relativistic gravitational fields within other physical systems, typically but not exclusively condensed matter systems, with the aim of gaining new insights into their corresponding problems. Analogue models of (and for) gravity have a long and distinguished history dating back to the earliest years of general rel...
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Three models of SGGs with increasing complexity and sensitivity have been developed at Maryland [Chan et al., 1987; Moody et al., 2002]. The Model II SGG has reached an operating sensitivity of 0.02 E Hz (1 E ≡ 1 Eötvös ≡ 10 s), three orders of magnitude improvement over the sensitivity achieved by room-temperature gradiometers. With such vastly improved sensitivity, the SGG finds useful applic...
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We have produced a Bose-Einstein condensate (BEC) on an atom chip using only superconducting wires in a cryogenic environment. We observe the onset of condensation for 1 · 10 atoms at a temperature of 100 nK. This result opens the way for studies of atom losses and decoherence in a BEC interacting with a superconducting surface. Studies of dipole-blockade with long-lived Rydberg atoms in a smal...
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We have trapped rubidium atoms in the magnetic field produced by a superconducting atom chip operated at liquid helium temperatures. Up to 8.2x10(5) atoms are held in a Ioffe-Pritchard trap at a distance of 440 microm from the chip surface, with a temperature of 40 microK. The trap lifetime reaches 115 s at low atomic densities. These results open the way to the exploration of atom-surface inte...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2020
ISSN: 1364-503X,1471-2962
DOI: 10.1098/rsta.2019.0224