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Multipolar Condensates and Tensor Gauge Fields
Speaker Prof. Qi Zhou, Purdue University
Date 9 July 2024 (Tuesday)
Time 14:30 - 16:00
Venue Room 2504, Academic Building, HKUST (Lifts 25-26)

Whereas bosons naturally tend to condense at sufficiently low temperatures, they may condense in an extraordinary means.  Here, I will discuss a class of new condensates that consists of multipoles instead of single particles. In other words, multiple particles and holes first form multipoles, which then condense in the absence of the off-diagonal long-range order of individual bosons. Furthermore, multipolar condensates do not respond to ordinary gauge fields but higher rank tensor gauge fields. The couplings between multipolar condensates and tensor gauge fields lead to new macroscopic quantum phenomena like multipolar Josephson effects.

Please contact phweb@ust.hk should you have questions about the talk.