Theory Group Lunchtime Seminars
Scheduled seminars are listed below.
Announcements and reminders will be posted to the physics-theory-group-seminar list.
To join this list:
- Sign into your university email account via webmail.
- Click the settings icon along the top icon bar (looks like a cog/gear).
- In the "Search Outlook settings" box type "distribution groups" and click the top search result.
- Under "Distribution groups I belong to" click the icon with two little people and a "+" sign.
- Search for physics-theory-group-seminar and double click on the result.
- Click "join". You will then be added to the email list once approved by a moderator.
To leave this list:
- Sign into your university email account via webmail.
- Click the settings icon along the top icon bar (looks like a cog/gear).
- In the "Search Outlook settings" box type "distribution groups" and click the top search result.
- Under "Distribution groups I belong to" click
physics-theory-group-seminar. - Click the "leave" icon above the list (looks like two people with a minus sign to their bottom right).
[If you are a member of Theory group, you will receive seminar announcements via physics-theory or physics-theory-staff. You do NOT need to subscribe to the above mailing list as well.]
Anton Souslov (Bath), Chiral Active Metamaterials
Active liquids are composed of self-driven microbots that endow the liquid with a unique set of mechanical characteristics. I will present two designs for materials exhibiting topological states: one using periodic confinement of an active liquid and another using a bulk fluid without periodic order. In a periodic lattice, geometry of confinement controls the structure of topological waves. Without periodic order, topological edge waves can arise in a rotating fluid as a result of the Coriolis force that breaks Galilean invariance and opens a gap at low frequency. I will explore how the number and spatial profile of topological edge states depends on an anomalous response coefficient called odd (or Hall) viscosity. As the sign of odd viscosity changes, a topological phase transition occurs without closing the bulk band gap. For large odd viscosity, this transverse response can be measured via the profile shape of topologically robust edge waves.