University of Cambridge > Talks.cam > Theoretical Physics Colloquium > Generalized global symmetries and dissipative magnetohydrodynamics

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

Generalized global symmetries and dissipative magnetohydrodynamics

Download to your calendar using vCal

If you have a question about this talk, please contact Shahar Hadar .

Just as ordinary global symmetries in quantum field theory are associated with conserved currents that count particle numbers, “generalized” global symmetries are associated with higher-form conserved currents that can be understood as counting higher-dimensional objects such as strings. I will discuss how this idea applies to the long-distance structure of theories of electromagnetism in four dimensions, where a key role is played by a higher-form conserved current that counts the density of magnetic flux lines. I will then use this higher form current to reformulate dissipative magnetohydrodynamics from the point of view of generalized symmetries and effective field theory.

This talk is part of the Theoretical Physics Colloquium series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Average on weekdays: 9035.54896142 kWh ARC (Anglia Ruskin – Cambridge) Romance Linguistics Seminars Thomas Gray Room, Pembroke College, Cambridge

Other talks

Afternoon Break Science & the Public in Action: Can and should climate scientists be activists? The elephant in the room: Machine Learning directly into physical models Formal Dinner at Selwyn College “Find him if you can!”: Havergal Brian’s The Tigers as ‘autobiopera’ Talk TBC
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity