Collective Modes of the Superconducting Condensate
Event Start:
2023-01-25T10:00:00
Event End:
2023-01-25T12:00:00
Event Information:
When a continuous symmetry is spontaneously broken, collective modes emerge. Usually, their spectrum is dominated by the low-energy physics of massless Goldstone modes. Superconductors, that break U(1) symmetry, are different. Here, the Goldstone boson is gapped out due to the Anderson-Higgs mechanism. The superconducting condensate can therefore host a zoo of massive collective excitations that are stable for lack of a gapless decay channel.
Event Location:
https://ubc.zoom.us/j/64229865355?pwd=d2RFMlh2eGlUUThOTW8zN0RIMGpFUT09
Speaker:
Rafael Haenel (PhD student)
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Event Start:
2023-01-25T10:00:00
Event End:
2023-01-25T12:00:00
Collective Modes of the Superconducting Condensate
Event Information:
When a continuous symmetry is spontaneously broken, collective modes emerge. Usually, their spectrum is dominated by the low-energy physics of massless Goldstone modes. Superconductors, that break U(1) symmetry, are different. Here, the Goldstone boson is gapped out due to the Anderson-Higgs mechanism. The superconducting condensate can therefore host a zoo of massive collective excitations that are stable for lack of a gapless decay channel.
Event Location:
https://ubc.zoom.us/j/64229865355?pwd=d2RFMlh2eGlUUThOTW8zN0RIMGpFUT09