Nicolas Mujica

Email: nmujica@dfi.uchile.cl

Dirección: Avenida Blanco Encalada 2008

Fono: 229784674

Cargo: Profesor Titular

Pagina Web

Lineas de Investigación

– Sistemas granulares

– Inestabilidades

– Caracterización acústica de materiales

Publicaciones

Researcher ID J-3646-2014

[32] Judit Lisoni, Alfredo Aguilera, Leslie Cancino, Vicente Salinas and Nicolás Mujica, “Young´s modulus and Poisson´s ratio of Radiata Pine: application to cutting forces and surface roughness”, submitted to European Journal of Wood and Wood Products (2017).

[31] Vicente Salinas, Claudio Aguilar, Rodrigo Espinoza-González, Fernando Lund, Nicolás Mujica, “In situ monitoring of dislocation proliferation during plastic deformation using ultrasound”, Int. J. of Plasticity 97, 178-193 (2017).

[30] Nicolas Perinet, Pablo Gutiérrez, Héctor Urra, Nicolás Mujica and Leonardo Gordillo, “Streaming patterns in Faraday waves”, J. Fluid Mech. 819, 285 – 310 (2017).

[29] Juvenal A. Letelier, Paulo Herrera, Nicolás Mujica and Jaime H. Ortega, “Enhancement of Synthetic Schlieren image resolution using total variation optical flow: application to thermal experiments in a Hele-Shaw cell”, Experiments in Fluids 57, 18 (2016).

[28] N. Mujica, M. Demkowicz, F. Lund, & A. Caro, “New Horizons for Mechanical Spectroscopy in Materials Science”, JOM 67, 1830-1831 (2015).

[27] Gustavo Castillo, Nicolás Mujica and Rodrigo Soto, “Universality and criticality of a second-order granular solid-liquid-like phase transition”, Phys. Rev. E 91, 012141 (2015).

[26] Julián Martínez-Mercado, Cristobal Arratia, Claudio Falcón, and Nicolás Mujica, “Gravity wave instability in a turbulent free surface Taylor-Couette flow: experiments and comparison with an amplitude equation with additive noise”, New Journal of Physics 17, 013039 (2015).

[25] Leonardo Gordillo and Nicolás Mujica, “Measurement of velocity field in parametrically excited solitary waves”, Journal of Fluid Mechanics 754, 590-604 (2014).

[24]  Baptiste Néel, Ignacio Rondini, Alex Turzillo, Nicolás Mujica, and Rodrigo Soto, “Dynamics of a first order transition to an absorbing state”, Phys. Rev. E 89, 042206 (2014), http://arxiv.org/abs/1401.1839v2

[23] Li-Hua Luu, Gustavo Castillo, Nicolás Mujica & Rodrigo Soto, “Capillary-like Fluctuations of a Solid-Liquid Interface in a Non-Cohesive Granular System”, Phys. Rev. E. 87, 040202(R) (2013), arXiv:1209.2837v3

[22] Loreto Oyarte, Pablo Gutiérrez, Sébastien Aumaître, Nicolás Mujica, “Phase Transition in a Out-of-equilibrium Monolayer of Dipolar Vibrated Grains”, Phys. Rev. E. 87, 022204 (2013) arXiv:1207.6026v1

[21] Nicolás Mujica, María Teresa Cerda, Rodrigo Espinoza, Judit Lisoni, and Fernando Lund, “Ultrasound as a probe of dislocation density in aluminum”, Acta Materialia 60, 5828-5837 (2012). DOI 10.1016/j.actamat.2012.07.023. arXiv:1207.2658v1

[20] Gustavo Castillo, Nicolás Mujica and Rodrigo Soto, “Fluctuations and Criticality of a Granular Solid-Liquid-like Phase Transition”, Phys. Rev. Lett. 109, 095701 (2012). arXiv:1204.0059v2

[19] F. Barra, F. Lund, N. Mujica, and S. Rica, “Shear modulus of an elastic solid under external pressure as a function of temperature: The case of helium”, Phys. Rev. B 85, 064103 (2012).

[18] M.G. Clerc, S. Coulibaly, L. Gordillo, N. Mujica, and R. Navarro, “Coalescence cascade of dissipative solitons in parametrically driven systems”, Phys. Rev. E 84, 036205 (2011).

[17] N. Rivas, S. Ponce, B. Gallet, D. Risso, R. Soto, P. Cordero & N. Mujica, “Sudden chain energy transfer events in vibrated granular media”, Physical Review Letters 106, 088001 (2011).

[16] L. Gordillo, T. Sauma, Y. Zárate, I. Espinoza, M.G. Clerc, and N. Mujica, “Can non-propagating hydrodynamic solitons be forced to move?”, Eur. Phys. J. D 62, 39-49 (2011). Topical issue: Workshop on Instabilities and Non-equilibrium Structures XII.

[15] I. Ortega, M.G. Clerc, C. Falcón & N. Mujica, “Subharmonic wave transition in a quasi-one-dimensional noisy fluidized shallow granular bed”, Phys. Rev. E 81, 046208 (2010).

[14] F. Barra, A. Caru, M. T. Cerda, R. Espinoza, A. Jara, F. Lund, & N. Mujica, “Measuring dislocation density in Aluminum with Resonant Ultrasound Spectroscopy”, Int. Journal of Bifurcation and Chaos 19, 3561-3565 (2009). Special Issue: Latinamerican Workshop on Nonlinear Phenomena 2007.

[13] M.G. Clerc, S. Coulibaly, N. Mujica, R. Navarro, & T. Sauma, “Pair interaction law in parametrically driven newtonian fluid”, Phil. Trans. R. Soc. A 367, 3213–3226 (2009). Theme Issue: Topics on non-equilibrium statistical mechanics and nonlinear physics.

[12] M.G. Clerc, P. Cordero, J. Dunstan, K. Huff, N. Mujica, D. Risso, & G. Varas, “Liquid-solid-like transition in quasi-one-dimensional driven granular media”, Nature Physics 4, 249-254 (2008).

[11] M.L. Cordero & N. Mujica, “Resonant frequency shifts induced by a large spherical object in an air-filled acoustic cavity”, J. of the Acous. Soc. of America 121, EL244 (2007).

[10] N. Mujica & D.P. Lathrop, “Hysteretic gravity-wave bifurcation in a highly turbulent swirling flow”, J. of Fluid Mech. 551, 49–62. (2006).

[9] N. Mujica & D.P. Lathrop, “Bistability and hysteresis in a Highly Turbulent Swirling Flow”, Physica A 356, 162 (2005). Special issue: Nonequilibrium Statistical Mechanics and Nonlinear Physics (MEDYFINOL’04).

[8] D.R. Sisan, N. Mujica, W.A. Tillotson, Y.-M. Huang, W. Dorland, A.B. Hassam, T.M. Antonsen & D.P. Lathrop, “First experimental observation and characterization of the magnetorotational instability”, Phys. Rev. Lett. 93, 114502 (2004).

[7] R. Wunenburger, N. Mujica & S. Fauve, “Experimental study of the Doppler shift generated by a vibrating scatterer”, J. of the Acous. Soc. of America 115, 507-514 (2004).

[6] N. Mujica, R. Wunenburger & S. Fauve, “Scattering of sound by sound in the vicinity of the liquid-vapor critical point”, Phys. Rev. Lett. 90, 234301 (2003).

[5] N. Mujica, R. Wunenburger & S. Fauve, “Scattering of a sound wave by a vibrating surface”, EJPB 33, 209-213 (2003).

[4] N. Mujica & S. Fauve, “Sound velocity and absorption in a coarsening foam”, Phys. Rev. E 66, 021404 (2002).

[3] N. Mujica & F. Melo, “Experimental study of solid-liquid-type transitions in vibrated granular layers and the relation with surface waves”, Phys. Rev. E 63, 011303 (2001).

[2] N. Mujica, L. Caballero & F. Melo, “Collective motion and solid-liquid-type transitions in vibrated granular layers”, Physica A 263, 362-368 (1999). Special Issue STATPHYS 20.

[1] N. Mujica & F. Melo, “Solid-liquid transition and hydrodynamic surface waves in vibrated granular layers”, Phys. Rev. Lett. 80, 5121-5124 (1998).

 

Regular Conference proceedings

[3] B.E. Brawn, K. Joshi, D.P. Lathrop, N. Mujica & D.R. Sisan, “Visualizing the invisible: Ultrasound velocimetry in liquiid sodium”, Chaos 15, 041104 (2005).

[2] N. Mujica, E. Tirapegui & F. Melo, “Pressure and surface dilation measurements in vibrated granular layers”, Instabilities and Nonequilibrium structures VI, pag 335, Kluwer Academic Publishers (2000).

[1] N. Mujica, S. Rica & S. Fauve, “Propagation du son dans la mousse”, Rencontre du non-linéaire 1999, pag. 136, Paris Onze Éditions (Orsay) 1999.

CV:

rofesional Preparation
  • Ph. D. in physics at Laboratoire de Physique Statistique, École Normale Supérieure de Paris, associated to Univ. de Paris VI (Sept. 1998 – Nov. 2002). Ph.D. supervisor: Stéphan Fauve.
  • Research Associate (postdoctoral position), Institute for Research in Electronics and Applied Physics, University of Maryland (Oct. 2002 – July 2004). Postdoc supervisor: Daniel Lathrop.
Positions
  • Since May 2017, Full Professor, Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile.
  • Oct. 2008 – April 2017, Associate Professor, Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile.
  • 2004 – Oct. 2008, Assistant Professor, Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile.
Undergraduate students (*=jointly supervised):
  • Juan Silva* (Computer Science Engineering, U. de Chile, 2012). Co-advised by N. Hitschfeld (Computer Science Department, FCFM, U. de Chile). Current position: Engineer Developer for video games at Atakama Labs.
  • Andres Caru (Acoustical Engineering Degree, Universidad Austral de Valdivia, 2007). Current position: In charge of teaching laboratories, Department of Physics, FCFM, U. of Chile.
  • Undergraduate research interns (since 2005, without thesis): approximately 30 students, for about 10 to 15 weeks, from Chile (~15), U. of Chicago (~12), MIT (1), ENS-Paris (2), ENS-Lyon (1), Université du Littoral Côte d’Opale (1).
Graduate Students advised (*=jointly supervised)
  • Verónica Gaete (Master Degree in Physics, Universidad de Chile, expected defense 2018)
  • Juan Carlos Sobarzo (Master Degree in Physics, Universidad de Chile, expected defense 2018)
  • Makarena Osorio (Engineering degree in Physics, Universidad de Santiago, expected defense 2017)
  • Carolina Espinoza (Ph.D. in Physics, Universidad de Chile, expected defense 2017)
  • Juvenal Letelier (Ph.D. in Fluidynamics, Universidad de Chile, 2016)
  • Carolina Espinoza (Master Degree in Physics, Universidad de Chile, 2013)
  • Gustavo Castillo (Ph.D. in Physics, Universidad de Chile, 2013). Current position: Postdoc at LPS-ENS Paris, France.
  • Leonardo Gordillo (Ph.D. in Physics, U. de Chile, 2012). Current position: Postdoc at Université Paris VII, France.
  • Tania Sauma* (Master Degree in Physics, Universidad de Chile, 2012, co-advised by M. Clerc). Current position: Ph.D. student at University of Manchester, UK.
  • Suomi Ponce (Master Degree in Physics, Universidad de Chile, 2012). Current position: Ph.D. student at ESPCI – Paris, France.
  • Loreto Oyarte (Master Degree in Physics, Universidad de Chile, 2010). Current position: Ph.D. student at University of Twente, Netherlands.
  • María Teresa Cerda* (Master Degree in Physics, U. de Chile, 2009, co-advised by F. Barra). Current position: Professor at University Adolfo Ibañez, Santiago & Viña del Mar, Chile. Also Master in Geo-physics student at University of Chile.
  • Germán Varas (Master Degree in Physics, Universidad de Chile, 2007). Current position: Associate professor at Pontificia Universidad Católica de Valparaíso, Chile.
  • Cristobal Arratia (Master Degree in Physics, Universidad de Chile, 2007). Current position: Postdoc at Ecole Polytechnique Fédérale de Lausanne, Switzerland.
  • Maria Luisa Cordero (Master Degree in Physics, Universidad de Chile, 2006). Current position: Assistant professor at Department of Physics, FCFM, Universidad de Chile.
Postdocs (*=jointly supervised)
  • Antonella Rescaglio, since May 2017. Quimal.
  • Héctor Alarcón, since January 2016. Fondecyt.
  • Vicente Salinas*. Since 2014. Funded by ANR 38 (Co-advised by F. Lund) & Fondecyt.
  • David Espíndola*. Dec. 2012 – Nov. 2013. Funded by ANR 38. Co-advised by F. Lund.
  • Nicolas Perinet*. July 2012 – July 2013. Funded by Anillo ACT 127. Co-advised by C. Falcón.
  • Julián Martínez*. Dec. 2011 – Sept. 2012. Funded by Anillo ACT 127 grant. Oct. 2012 – Sept. 2014 Funded by Fondecyt Postdoctoral grant 3130492. Co-advised by C. Falcón.
  • Aurelien Merkel*. Sept. 2011 – June 2012. Funded by ANR 38. Co-advised by F. Lund.
  • Li-Hua Luu. March – September 2011. Funded by Anillo ACT 127 grant; October 2011 – September 2012. Funded by Fondecyt Postdoctoral grant 3120172.
  • Thomas Séon, Dic. 2006 – Dic. 2007. Funded by SCAT program.
Recent research grants (since 2009)
  • PI Quimal 160001, “Experimental Astrophysical Research into Terrestrial growtH (EARTH)”
  • PI Fondecyt 1150393, “Dynamics of confined noncohesive granular systems”
  • Co-investigator Fondecyt 1160823, “Ultrasound as a probe of plasticity in copper and copper alloys”
  • Anillo ACT 127 “Dynamics of and Disordered Heterogeneous Media” (april 2010 – march 2013). Grant director. Principal Investigators: F. Barra, F. Lund and R. Soto.
  • MIT-Chile Seed grant “Relating the Structure and Acoustical Properties of Solid-State Interfaces” (2012-2013). Co-investigator. Other investigators: F. Lund and M. Demkowicz.
  • Principal investigator of Fondecyt grants 1050331 (2005 – 2006), 1070346 (2007 – 2008), 1090188 (2009 – 2011) & 1120211 (2012 – 2014). Co-investigator of Fondecyt grants 1100198 (2010 – 2012) & 1130382 (2013 – 2015). Other members: F. Lund (PI) and R. Espinoza (2nd Co-investigator).

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