Romain Daviet and Nicolas Dupuis
Phys. Rev. E 103, 052136 (2021)
In a Bose fluid, disorder can induce a quantum phase transition between a superfluid phase and a localized phase called a Bose glass. Using a renormalization group approach, the authors study a one-dimensional disordered Bose fluid and find that the Bose-glass phase exhibits an extreme sensitivity to any change in the realization of the disorder.
Siddhartha Sarkar, Matjaž Čebron, Miha Brojan, and Andrej Košmrlj
Phys. Rev. E 103, 053003 (2021)
Elastic materials with holes and inclusions can deform in various ways in response to applied external loads. The authors present a theory for such deformations, using an analogy with the concepts of polarization and multipoles in electrostatics. They apply the theory to infinite, two-dimensional solids with circular voids and inclusions, and provide a set of experimental tests.
Siddhartha Sarkar, Matjaž Čebron, Miha Brojan, and Andrej Košmrlj
Phys. Rev. E 103, 053004 (2021)
The authors generalize their theory for the deformation of solids with holes and inclusions to structures with boundaries, in analogy with the method of image charges in electrostatics. The theory improves in accuracy when higher-order multipoles are used, and is especially efficient when defects are spaced far apart and far from the boundaries.
Takeaki Araki and Natsumi Chikakiyo
Phys. Rev. E 103, 042611 (2021)
Placing a fluid mixture in a temperature gradient can cause concentration gradients to build up, a phenomenon called the Soret effect. The authors simulate this effect for a mixture of monomers and dimers, and find a contribution from the internal degrees of freedom of the dimers. Under some conditions the sign of the effect is reversed.
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