Speaker
Heetae Kim
(Institute for Basic Science)
Description
What happens when the temperature reaches absolute zero? Physical phenomena at the zero-temperature limit are studied in accelerator physics. The background temperature of the universe goes down as long as expansion goes on. The BCS resistance of a superconducting cavity is shown as a function of temperature at different frequencies. The surface resistance of the Nb superconducting cavity is reduced to residual resistance and flux-trapped resistance at 0 K. Blackbody radiation is stopped by heat radiation at 0 K. Thermal expansion and thermal diffu-sion become zero at 0 K. Black holes evaporate at 0 K.
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Primary author
Heetae Kim
(Institute for Basic Science)
