低温センター談話会(Dr. Christopher BAUERLE)
- 日時
- 平成31年2月19日（火）16：00〜17：00
- 場所
- 東京大学低温センター3階 セミナー室
- 講師
- Professor Ming-Wei Wu (University of Science & Technology of China)
- 題目
- Gauge-invariant microscopic kinetic theory of superconductivity in response to electromagnetic fields
- 解説
- Within a gauge-invariant microscopic kinetic theory, we study the electromagnetic response in the superconducting states. Both superfluid and normal-fluid dynamics are involved. The excitation of Higgs and Goldstone modes are addressed on an equal footing. A novel phase and some new understanding on conventional superconductivity are addressed. Possible method to measure the Goldstone mode is discussed.
[1] F. Yang and M. W. Wu, "Gauge-invariant microscopic kinetic theory of superconductivity in response to electromagnetic fields", Phys. Rev. B98, 094507 (2018).
[2] T. Yu and M. W. Wu, "Gauge-invariant theory of quasiparticle and condensate dynamics in response to THz optical pulses in superconducting semiconductor quantum wells. I. s-wave superconductivity in the weak spin-orbit coupling limit", Phys. Rev. B 96, 155311 (2017).
[3] T. Yu and M. W. Wu, "Gauge-invariant theory of quasiparticle and condensate dynamics in response to THz optical pulses in superconducting semiconductor quantum wells. II. (s+p)-wave superconductivity in strong spin-orbit coupling limit", Phys. Rev. B 96, 155312 (2017).