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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:The role of nolinearity and fluctuations in the no
 n-reciprocal Cahn-Hilliard model - Suropriya Saha 
 (Max Planck Institute for Dynamics and Self Organi
 sation)
DTSTART;TZID=Europe/London:20240614T114000
DTEND;TZID=Europe/London:20240614T123000
UID:TALK214789AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/214789
DESCRIPTION:Non-reciprocal interactions between scalar fields 
 that represent the concentrations of two active sp
 ecies are known to break the parity and time-rever
 sal (PT) symmetries of the equilibrium state\, as 
 manifested in the emergence of travelling waves. I
 n my talk I will discuss various aspects of the No
 n-reciprocal Cahn-Hilliard model. I will&nbsp\;dis
 cuss&nbsp\;the role of an active pressure in deter
 mining the dynamical steady state.&nbsp\;I will ex
 plore the notion of nonlinear non-reciprocity and 
 consider a model in which the non-reciprocal inter
 actions can depend on the local values of the scal
 ar fields. For generic cases where such couplings 
 exist\, we observe the emergence of spatiotemporal
  chaos in the steady-state associated with a local
  restoration of PT symmetry in fluctuating spatial
  domains\, which leads to the coexistence of oscil
 lating densities and phase-separated droplets that
  are spontaneously created and annihilated. Finall
 y I will discuss the role of fluctuations in the o
 rdered 'polar state' that arises in the system.
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:
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