Rodrigo Soto


Address: Blanco Encalada 2008

Phone: 29784520

Charge: Profesor Titular

Web Page

Research Lines

Statistical mechanics:
Transport properties out of equilibrium
Active amtter
Heterogenenous and disordered materials
Particulated systems

Active matter:
Active suspensions (bacterial baths)
Active colloids
Tissue dynamics and cell migration

Granular media:
Rapid granular flows
Dense flows
Confined systems

Computational physics:
Simulation of dense granular media
Efficient simulation of bacterial baths

Research projects
Millenium Nucleus Physics of Active Matter
Fondecyt regular 2018 1180791 “Discrete models of active matter”
Laboratoire International Associé “Matière : Structure et Dynamique”


Book: Kinetic Theory and Transport Phenomena
Oxford University Press (2016)
Master Series in Physics
Rodrigo Soto
More information: table of contents, errata sheet, reviews, solution manual

Recent Publications
Researcher ID AAR-6827-2020
Google ID

Energy nonequipartition in a collisional model of a confined quasi-two-dimensional granular mixture
R Brito, R Soto, V Garzó
arXiv preprint arXiv:2009.02957 2020

E. coli “super-contaminates” narrow ducts fostered by broad run-time distribution
N Figueroa-Morales, A Rivera, R Soto, A Lindner, E Altshuler, É Clément
Science Advances 6, eaay0155 7 (2020)

Run-and-tumble bacteria slowly approaching the diffusive regime
A Villa-Torrealba, C Chávez-Raby, P de Castro, R Soto
Physical Review E 101, 062607 (2020)

3D spatial exploration by E. coli echoes motor temporal variability
N. Figueroa-Morales, T. Darnige, C. Douarche, V. Martinez, R. Soto, A. Lindner, E. Clément
Physical Review X 10, 021004 (2020)

Bacteria driving droplets
G Ramos, ML Cordero, R Soto
Soft Matter 16, 1359-1365 (2020)

Hyperuniform states generated by a critical friction field
G. Castillo, N. Mujica, N. Sepúlveda, J.C. Sobarzo, M. Guzmán, and R. Soto
Physical Review E 100, 032902 (2019)

Magnetotactic bacteria in a droplet self-assemble into a rotary motor
B Vincenti, G Ramos, ML Cordero, C Douarche, R Soto, E Clément
Nature communications 10, 1-8 (2019)

Cell migration driven by substrate deformation gradients
S Márquez, G Reig, M Concha, R Soto
Physical Biology 16, 066001 (2019)

Case study: Discrete element modeling of wear in mining hoppers
E Rojas, V Vergara, R Soto
Wear 430, 120-125 (2019)

Swimming bacteria in Poiseuille flow: The quest for active Bretherton-Jeffery trajectories
G Junot, N Figueroa-Morales, T Darnige, A Lindner, R Soto, H Auradou, E Clement
EPL (Europhysics Letters) 126, 44003 (2019)

Directed assembly of active colloidal molecules
S Gonzalez, R Soto
New Journal of Physics 21, 033041 (2019)

Nonideal rheology of semidilute bacterial suspensions
M Guzmán, R Soto
Physical Review E 99, 012613 (2019)

Universality of active wetting transitions
N. Sepúlveda and R. Soto
Physical Review E 98, 052141 (2018)

Effective two-dimensional model for granular matter with phase separation
D. Risso, R. Soto, and M. Guzmán
Physical Review E 98, 022901 (2018)

Active colloidal chains with cilia-and flagella-like motion
S. Gonzalez and R. Soto
New J. Physics 20 053014 (2018)

Enskog kinetic theory of a confined quasi-two-dimensional granular fluid
V. Garzó, R. Brito, and R. Soto
Physical Review E 98, 052904 (2018)

Critical phenomena in quasi-two-dimensional vibrated granular systems
M Guzmán, R Soto
Physical Review E 97, 012907 (2018)

GPU parallel simulation algorithm of Brownian particles with excluded volume using Delaunay triangulations
F Carter, N Hitschfeld, C Navarro, R Soto
Computer Physics Communications 229, 148 (2018)

Heat transfer enhancement strategies in a swirl flow minichannel heat sink based on hydrodynamic receptivity
B Herrmann-Priesnitz, WR Calderón-Muñoz, G Diaz, R Soto
International Journal of Heat and Mass Transfer 127, 245 (2018)

Stability and receptivity of boundary layers in a swirl flow channel
B Herrmann-Priesnitz, WR Calderón-Muñoz, R Soto
Acta Mechanica 229, 4005 (2018)

Wetting transitions displayed by persistent active particles
N Sepúlveda, R Soto
Physical Review Letters 119, 078001 (2017)

Thermal design exploration of a swirl flow microchannel heat sink for high heat flux applications based on numerical simulations
B Herrmann-Priesnitz, WR Calderón-Muñoz, A Valencia, R Soto
Applied Thermal Engineering 109, 22-34 (2016)

Coarsening and clustering in run-and-tumble dynamics with short-range exclusion
N Sepúlveda, R Soto
Physical Review E 94, 022603 (2016)

Dynamics of noncohesive confined granular media
N Mujica, R Soto
Recent Advances in Fluid Dynamics with Environmental Applications, 445-463 (2016)

Effect of the vibration profile on shallow granular systems
P Cordero, D Risso, R Soto
Phil. Trans. R. Soc. A 373 (2056), 20150116 (2015)

Relaxation processes after instantaneous shear rate reversal in a dense granular flow
E. Rojas, M. Trulsson, B. Andreotti, E. Clement and R. Soto, EPL 109, 64002 (2015)

Self-assembly of Active Colloidal Molecules with Dynamic Function
Rodrigo Soto and Ramin Golestanian
Phys. Rev. E 91, 052304 (2015)

Universality and criticality of a second-order granular solid-liquid-like phase transition
G. Castillo, N, Mujica, and R. Soto
Phys. Rev. E 91, 012141 (2015)

Shear viscosity of a model for confined granular media
R. Soto, D. Risso, and R. Brito
Phys. Rev. E 90, 062204 (2014)

Casimir effect in swimmer suspensions
C. Parra-Rojas and R. Soto
Phys. Rev. E 90, 013024 (2014)

Dynamics of a first-order transition to an absorbing state
B. Néel, I. Rondini, A. Turzillo, N. Mujica, and R. Soto
Phys. Rev. E 89, 042206 (2014)

Self-assembly of catalytically active colloidal molecules: Tailoring activity through surface chemistry
Rodrigo Soto and Ramin Golestanian
Phys. Rev. Lett. 112, 068301 (2014)

Run-and-tumble in a crowded environment: persistent exclusion process for swimmers
Rodrigo Soto and Ramin Golestanian
Phys. Rev. E 89, 012706 (2014)

Active temperature and velocity correlations produced by a swimmer suspension
C. Parra-Rojas and R. Soto
Phys. Rev. E 87, 053022 (2013)

Subdiffusive behavior of a dilute non-Brownian suspension under shear
Francisca Guzman-Lastra and Rodrigo Soto
Phys. Rev. E 87, 042311 (2013)

Hydrodynamic modes in a confined granular fluid
R. Brito, D. Risso, and R. Soto
Phys. Rev. E 87, 022209 (2013)

Induced Diffusion of Tracers in a Bacterial Suspension: Theory and Experiments
G. L. Miño, J. Dunstan, A. Rousselet, E. Clement, and R. Soto
J. Fluid Mech. 729, 423 (2013)

Capillarylike fluctuations of a solid-liquid interface in a noncohesive granular system
L.-H. Luu, N. Mujica, and R. Soto
Phys. Rev. E 87, 040202(R) (2013)

Stochastic resonance on the transverse displacement of swimmers in an oscillatory shear flow
Francisca Guzman-Lastra and Rodrigo Soto
Phys. Rev. E 86, 037301 (2012)

Fluctuations and Criticality of a Granular Solid-Liquid-like Phase Transition
G. Castillo, N. Mujica, and R. Soto
Phys. Rev. Lett. 109, 095701 (2012)

Numerical computation of Casimir forces via stochastic quantization
Pablo Rodriguez-Lopez, Ricardo Brito and Rodrigo Soto
Int. J. Mod. Phys. Conf. Ser. 14, 485 (2012)

Characterization of the energy bursts in vibrated shallow granular systems
N. Rivas, P. Cordero, D. Risso, and R. Soto
Gran. Matt. 14, 157 (2012)

A two-sphere model for bacteria swimming near solid surfaces
Jocelyn Dunstan, Gastón Miño, Eric Clement, Rodrigo Soto
Phys. Fluids 24, 011901 (2012)

Stochastic Quantization and Casimir Forces
Pablo Rodriguez-Lopez, Ricardo Brito, and Rodrigo Soto
Erophys. Lett. 96, 50008 (2011)

Energy bursts in vibrated shallow granular systems
N. Rivas, D. Risso, R. Soto, and P. Cordero
AIP Conf. Proc. 1332, 184 (2011). NONEQUILIBRIUM STATISTICAL PHYSICS TODAY: Proceedings of the 11th Granada Seminar on Computational and Statistical Physics

Segregation in quasi two-dimensional granular system
Nicolás Rivas, Patricio Cordero, Dino Risso, and Rodrigo Soto
New J. Phys. 13, 055018 (2011)

Characterization of the Melting Transition in Two Dimensions at Vanishing External Pressure Using Molecular Dynamics Simulations
Daniel Asenjo, Fernando Lund, Simón Poblete, Rodrigo Soto, Marcos Sotomayor
Phys. Rev. B 83, 174110 (2011)

Sudden chain energy transfer events in vibrated granular media
N. Rivas, S. Ponce, B. Gallet, D. Risso, R. Soto, P. Cordero, and N. Mujica
Phys. Rev. Lett. 106, 088001 (2011)

Enhanced diffusion due to active swimmers at a solid surface
G. Miño, T.E. Mallouk, T. Darnige, M. Hoyos, J. Dauchet, J. Dunstan, R. Soto, Y. Wang, A. Rousselet, and E. Clement
Phys. Rev. Lett. 106, 048102 (2011)

Dynamical approach to the Casimir effect
P. Rodriguez-Lopez, R. Brito, and R. Soto
Phys. Rev. E 83, 031102 (2011)

Extended event driven molecular dynamics for simulating dense granular matter
S. Gonzalez, D. Risso, and R. Soto
Eur. Phys. J. Special Topics 179, 33 (2009)

Competition of Brazil nut effect, buoyancy, and inelasticity induced segregation in a granular mixture
R.Brito and R. Soto
Eur. Phys. J. Special Topics 179, 207 (2009)

Brazil nut effect: Influence of friction and jamming on the transition line
Patricio Cordero, Sergio Godoy, Dino Risso and Rodrigo Soto
Modeling and simulation of new materials: AIP Conference Proceedings Volume 1091 (Springer, 2009) Tenth Granada Lectures, pp 124-133

Violation of the action-reaction principle and self-forces induced by nonequilibrium fluctuations
P. Buenzli and R. Soto
Phys. Rev. E 78, 020102(R) (2008)

Rise of a Brazil nut: A transition line
S. Godoy, D. Risso, R. Soto, and P. Cordero
Phys. Rev. E 78, 031301 (2008)

Segregation induced by inelasticity in a vibrofluidized granular mixture
R. Brito, H. Enríquez, S. Godoy, and R. Soto
Phys. Rev. E 77, 061301 (2008)

Casimir forces in granular and other non equilibrium systems
R.Brito, R. Soto, and U. Marini Bettolo Marconi
Granular Matter 10 29 (2007)

Generalized Casimir forces in nonequilibrium systems
R.Brito, U. Marini Bettolo Marconi, and R. Soto
Phys. Rev. E 76 0111113 (2007)

Ring approximation at equilibrium: The hard sphere pair correlation function
Jaroslaw Piasecki and Rodrigo soto
Physica A 379 409 (2007)

Confined suspension jet and long-range hydrodynamic interactions: A destabilization scenario
Alejandra Alvarez, Eric Clement, and Rodrigo Soto
Phys. Fluids 18 083301 (2006)

Fluctuation-Induced Casimir Forces in Granular Fluids
C. Cattuto, R. Brito, U. Marini Bettolo Marconi, F. Nori, R. Soto
Phys. Rev. Letters 96 178001 (2006)

Hydrodynamic boundary condition in vibrofluidized granular systems
Rodrigo Soto and M. Malek Mansour
Physica A 369 301 (2006)

Approach to a non-equilibrium steady state
Jaroslaw Piasecki and Rodrigo Soto
Physica A 369 379 (2006)

Thesis students

  • Héctor Ramos. PhD in Physics. Research project: Measurement of shear bands in granular media.
  • Fernanda Perez. MSc in Physics. Research project:  Dynamics of pushed epithelia, considering active efforts.
  • Gabriel Ramos. PhD in Physics. Thesis: Study of the dynamics of confined microswimmers in a drop: from microactivity to macromotion.
  • Susana Marquez: MSc in Physics. Thesis: Physical model of durotaxis in cells with non-polarized morphology
  • Marcelo Guzman, MSc in Physics. Thesis: Non-ideal rheology of a bacterial suspension
  • Eduardo Rojas, PhD in Fluid-dynamics. Thesis: Reología de medios granuales densos con dependencia temporal (finished 2015)
  • Francisca Guzmán, PhD in Fluid-dynamics. Thesis: Difusión en suspensiones activas y pasivas (finished 2012)
  • Cesar Parra, MSc in Physics. Thesis: Fuerzas de Casimir en suspensiones bacterianas (finished 2012)
  • Lissette Cabrera, Computer engineering. Thesis: Visualizador de sistemas de partículas en 2D y 3D (finished 2012)
  • Nicolás Rivas, MSc in Physics. Thesis: Segregación en una superficie granular vibrada (finished 2011)
  • Jocelyn Dunstan, MSc in Physics. Thesis: Modelo hidrodinámico de bacterias interactuando con superficies y partículas micrométricas (finished 2010)