Noise induced phase transition between maximum entropy production structures and minimum entropy production structures?

Hübler, Alfred; Belkin, A.; Bezryadin, Alexey

doi:10.1002/cplx.21639

Cited by 7 publications

(2 citation statements)

References 22 publications

(25 reference statements)

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“…Interestingly, the same critical Re also shows up in our thermodynamic analysis of flow past a half-cylinder. This change is also remarkably similar to the results by Hubler et al [24] on the entropy production during the self-assembly of nanotubes. They also observe a switching from a maximum to a minimum entropy production with increasing dissipative effects.…”

Section: Discussionsupporting

confidence: 91%

Entropy production for the terminal orientation of a half cylinder in a flow

Chung

Ortega

Vaidya

2015

Proceedings of 2nd International Electronic Conference on Entropy and Its Applications

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The terminal orientation of a rigid body is a classic example of a system out of thermodynamic equilibrium and a perfect testing ground for the validity of the maximum entropy production principle(MEPP). A freely falling body in a quiescent fluid generates fluid flow around the body resulting in dissipative losses. Thus far, dynamical equations have been employed in deriving the equilibrium states of such falling bodies, but they are far too complex and become analytically intractable when inertial effects come into play. At that stage, our only recourse is to rely on numerical techniques which can be computationally expensive. In our past work, we have realized that the MEPP is a reliable tool to help predict mechanical equilibrium states of free falling, highly symmetric bodies such as cylinders, spheroids and toroidal bodies. We have been able to show that the MEPP correctly helps choose the stable equilibrium in cases when the system is slightly out of thermodynamic equilibrium. In the current paper, we expand our analysis to examine bodies with fewer symmetries than previously reported, for instance, a half-cylinder. Using two-dimensional numerical studies at Reynolds numbers substantially greater than zero, we examine the validity of the MEPP. Does the principle still hold up when a sedimenting body is no longer isotropic nor has three planes of symmetry? In addition, we also examine the relation between entropy production and dynamical quantities such as drag force to find possible qualitative relations between them.

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Section: Discussionsupporting

confidence: 91%

Entropy production for the terminal orientation of a half cylinder in a flow

Chung

Ortega

Vaidya

2015

Proceedings of 2nd International Electronic Conference on Entropy and Its Applications

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“…Understanding the driven self-organization of fluctuating assemblies is of fundamental significance. Questions concerning the existence of extremal principles, which might minimize or maximize, entropy production, for example, or the importance of system history, are fundamental . Understanding them, through the examination of systems like the one described above, is essential in developing the capacity for the top-down, spontaneous self-organization of nanomachines capable of performing intricate tasks at the nanoscale …”

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confidence: 99%

Optical Binding of Nanowires

et al. 2017

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Multiple scattering of light induces structured interactions, or optical binding forces, between collections of small particles. This has been extensively studied in the case of microspheres. However, binding forces are strongly shape dependent: here, we turn our attention to dielectric nanowires. Using a novel numerical model we uncover rich behavior. The extreme geometry of the nanowires produces a sequence of stationary and dynamic states. In linearly polarized light, thermally stable ladder-like structures emerge. Lower symmetry, sagittate arrangements can also arise, whose configurational asymmetry unbalances the optical forces leading to nonconservative, translational motion. Finally, the addition of circular polarization drives a variety of coordinated rotational states whose dynamics expose fundamental properties of optical spin. These results suggest that optical binding can provide an increased level of control over the positions and motions of nanoparticles, opening new possibilities for driven self-organization and heralding a new field of self-assembling optically driven micromachines.

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