Condensed Matter Theory

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Loop models with crossings

Physical Review B American Physical Society (APS) 87:18 (2013) 184204

Authors:

Adam Nahum, P Serna, AM Somoza, M Ortuño
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Topological order and absence of band insulators at integer filling in non-symmorphic crystals

Nature Physics Springer Nature 9:5 (2013) 299-303

Authors:

Siddharth A Parameswaran, Ari M Turner, Daniel P Arovas, Ashvin Vishwanath
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Tunnelling current through fractional quantum Hall interferometers

(2013)

Authors:

Olaf Smits, Steven H Simon, JK Slingerland
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Microscopic Theory of a Quantum Hall Ising Nematic: Domain Walls and Disorder

(2013)

Authors:

Akshay Kumar, SA Parameswaran, SL Sondhi
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Phase Dependent Forcing and Synchronization in the three-sphere model of Chlamydomonas

ArXiv 1304.2956 (2013)

Authors:

Rachel R Bennett, Ramin Golestanian

Abstract:

The green alga {\it Chlamydomonas} swims with synchronized beating of its two flagella, and is experimentally observed to exhibit run-and-tumble behaviour similar to bacteria. Recently we studied a simple hydrodynamic three-sphere model of {\it Chlamydomonas} with a phase dependent driving force which can produce run-and-tumble behaviour when intrinsic noise is added, due to the non-linear mechanics of the system. Here, we consider the noiseless case and explore numerically the parameter space in the driving force profiles, which determine whether or not the synchronized state evolves from a given initial condition, as well as the stability of the synchronized state. We find that phase dependent forcing, or a beat pattern, is necessary for stable synchronization in the geometry we work with.
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