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SUMMARY:Probing Nuclear Superfluidity With Neutron Stars - Nicolas Chamel\
 , Université Libre de Bruxelles
DTSTART:20200205T141500Z
DTEND:20200205T151500Z
UID:TALK137608@talks.cam.ac.uk
CONTACT:Francesca Chadha-Day
DESCRIPTION:Formed in the aftermath of gravitational core-collapse \nsuper
 nova explosions\, neutron stars contain matter crushed at \ndensities exce
 eding that found inside the heaviest atomic nuclei \nand are therefore uni
 que laboratories for exploring novel phases of\nmatter under conditions so
  extreme that they cannot be reproduced on\nEarth. In particular\, neutron
  stars are the only celestial bodies\nthat are expected to contain frictio
 nless quantum liquids. Although\nsuch superfluids have been extensively st
 udied in the laboratory\, the\nproperties of their stellar counterpart sti
 ll remain largely unknown. \nThe main difficulty lies in the widely differ
 ent scales involved: \nrotating superfluid neutron stars (whose radius is 
 about 10 kilometres)\nare thought to be threaded by quantized vortices wit
 h tiny cores of\nabout 10-100 fermis and separated by a typical distance o
 f 0.1 microns.\nTo add to the challenge\, a neutron star is so compact (ha
 ving a mass\nbetween once and twice that of the Sun) that it must be descr
 ibed by\nEinstein's theory of general relativity. During this talk\, I wil
 l \npresent recent developments in the understanding of superfluidity in\n
 neutron stars.
LOCATION:MR2\, Centre for Mathematical Sciences
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