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Theoretical physicists working at a blackboard collaboration pod in the Beecroft building.
Credit: Jack Hobhouse

Prof Ramin Golestanian

Professor of Theoretical Condensed Matter Physics

Sub department

  • Rudolf Peierls Centre for Theoretical Physics

Research groups

  • Condensed Matter Theory
Ramin.Golestanian@physics.ox.ac.uk
Telephone: 01865 273974
Rudolf Peierls Centre for Theoretical Physics, room 60.12
Max Planck Institute for Dynamics and Self-Organization
Oxford Podcast (2014): Living Matter & Theo Phys
Oxford Podcast (2017): The bacterial Viewpoint
  • About
  • Teaching
  • Publications

Quantifying configurational information for a stochastic particle in a flow-field

New Journal of Physics IOP Publishing 22:8 (2020) 083060

Authors:

Evelyn Tang, Ramin Golestanian
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Degenerate states, emergent dynamics and fluid mixing by magnetic rotors

Soft Matter Royal Society of Chemistry 16:28 (2020) 6484-6492

Authors:

Takuma Kawai, Daiki Matsunaga, Fanlong Meng, Julia M Yeomans, Ramin Golestanian

Abstract:

We investigate the collective motion of magnetic rotors suspended in a viscous fluid under a uniform rotating magnetic field. The rotors are positioned on a square lattice, and low Reynolds hydrodynamics is assumed. For a 3 × 3 array of magnets, we observe three characteristic dynamical patterns as the external field strength is varied: a synchronized pattern, an oscillating pattern, and a chessboard pattern. The relative stability of these depends on the competition between the energy due to the external magnetic field and the energy of the magnetic dipole-dipole interactions among the rotors. We argue that the chessboard pattern can be understood as an alternation in the stability of two degenerate states, characterized by striped and spin-ice configurations, as the applied magnetic field rotates. For larger arrays, we observe propagation of slip waves that are similar to metachronal waves. The rotor arrays have potential as microfluidic devices that can mix fluids and create vortices of different sizes.
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Designing metachronal waves of cilia

(2020)

Authors:

Fanlong Meng, Rachel R Bennett, Nariya Uchida, Ramin Golestanian
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Cooperatively enhanced reactivity and “stabilitaxis” of dissociating oligomeric proteins

Proceedings of the National Academy of Sciences of the United States of America Proceedings of the National Academy of Sciences 117:22 (2020) 11894-11900

Authors:

Jaime Agudo-Canalejo, Pierre Illien, Ramin Golestanian
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Bose–Einstein-like condensation due to diffusivity edge under periodic confinement

New Journal of Physics IOP Publishing 22:6 (2020) 063045

Authors:

Benoît Mahault, Ramin Golestanian
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