Collaborators

Ada Altieri

Postdoc (funding: Simons Grant, November 2018 – present)
Working with Giulio Biroli 

Ada Altieri obtained her PhD in Theoretical Physics in February 2018 both from the University of Rome “Sapienza” and the University Paris-Sud XI (cotutelle de thèse) co-advised by Giorgio Parisi and Silvio Franz respectively. During her doctoral studies she focused, on the one hand, on renormalization group techniques in disordered systems and, on the other hand, on the connections between continuous constraint satisfaction problems and the jamming transition in high dimension.   Then, in November 2017 she moved to the Laboratoire de Physique Théorique at École Normale Supérieure, in Paris, where she started a one-year postdoc with Francesco Zamponi working on the rheology of amorphous solids under shear deformations.

Since November 2018 she is a postdoctoral researcher in the team of Giulio Biroli, working both on glassy systems and on the investigation of collective and critical behaviors in large ecosystems.


Francesco Arceri
PhD student (September 2017-present)
Working with Eric Corwin

Francesco is studying the structure of packings subject to an effective logarithmic interparticle potential, predicted to be the effective mean-field free energy for hard sphere glasses. The purpose of his research is to create equilibrium thermal configurations of hard spheres using a zero temperature compression protocol which minimises the logarithmic potential. Doing so it is possible to obtain packings at densities inaccessible with conventional simulation schemes.

Francesco received his master degree in Theoretical Physics in January 2017 from “La Sapienza” University of Rome, Italy. During his master he focused his interests on disordered systems, in particular studying models to describe glasses working with Federico Ricci-Tersenghi.


Chitrak Bhadra
Postdoc (funding: Simons grant, April 2019-present)
Working with: David Reichman, Grzegorz Szamel and Patrick Charbonneau

Chitrak Bhadra is a postdoctoral research fellow at the Department of Chemistry, Columbia University in the David Reichman Group. His primary interests are analytical and numerical investigations into extensions of Mode Coupling Theory to understand liquid-glass transition and glassy dynamics more accurately. He obtained his PhD in Physics from Jadavpur University, Kolkata (India) in early 2019 and was funded by a national fellowship from the Govt. of India. The topic of his PhD thesis was Fluctuation Dissipation Relations and Generalised Langevin equations in nonlinear systems and presented, among others, significant results in strong coupling regime of open systems.


Horst-Holger Boltz
Postdoc
Working with Jorge Kurchan, Andrea Liu, Sidney Nagel (2017-present)

Horst-Holger Boltz is currently a joint postdoc between the University of Pennsylvania, the University of Chicago and the ECS Paris. He obtained his PhD in 2015 from the TU Dortmund under the supervision of Jan Kierfeld. Afterwards he did a two-year postdoc at the University of Göttingen with Stefan Klumpp.

His current work is on the evolution of the energy landscape in glassy systems under quasistatic driving.


Barbara Bravi
Postdoc (funding: Simons Grant, 2017-2019)
Working with Matthieu Wyart, 2017-2019

Barbara Bravi is a postdoctoral research fellow at École Polytechnique Fédérale de Lausanne, in the Physics of Complex Systems Laboratory led by Matthieu Wyart.  Her aim is to apply the powerful insights developed in the Statistical Mechanics of glassy systems to study co-evolution of structural and functional features such as allostery in proteins.  She obtained her PhD in 2016 at King’s College London under the supervision of Peter Sollich and furthermore her research project was part of “NETADIS – Statistical Physics Approaches to NETworks Across DISciplines”, a Marie Curie Training Network funded by the European Commission. She worked on path integral approaches to mean field dynamical descriptions, coarse-graining and inverse problem techniques for stochastic, out-of-equilibrium processes, with a particular emphasis on theoretical modelling of these phenomena in biological networks.


Stéphane d’Ascoli
PhD student
Working with Giulio Biroli (2018-present)

Stéphane d’Ascoli is a PhD student working between the Institute of Theoretical Physics (IPhT) of CEA and the Laboratory of Statistical Physics (LPS) of ENS. He is currently investigating the properties of energy landscapes in deep neural networks.

 


Cameron Dennis
PhD student
Working with Eric Corwin

Cameron Dennis is a PhD student at the University of Oregon under the supervision of Eric Corwin. Cameron is measuring the boundaries of the Gardner regime for zero temperature soft sphere systems.

 

 


Giampaolo Folena
PhD student (funding: Sapienza – Univerity of Rome, 2016-present)
Working with Silvio Franz and Federico Ricci-Tersenghi

Currently based in Orsay (France), Giampaolo Folena is a PhD student within a joint program between LPTMS in Orsay (University of Paris Sud) and Sapienza University of Rome, under the supervision of Silvio Franz and Federico Ricci-Tersenghi. He received his master’s degree in Theoretical Physics at Sapienza Univerity of Rome in 2016, and presently is pursuing his PhD, studying the asymptotic solutions of glassy dynamics in mean-field models.


Miguel Ruiz Garcia

Postdoc
Working with Andrea Liu

Miguel Ruiz García is currently a postdoc at University of Pennsylvania working with Andrea Liu (Simons PI) and Eleni Katifori. He is interested on understanding how to control the structure of energy landscapes and its effect when tuning flow networks and jamming systems of soft spheres. He is also interested on the dynamics of excitable flow networks, trying to understand the emergence of spontaneuos fluctuations on the brain vasculature. Finally, Miguel has also studied the effect of thermal fluctuations on the mechanical properties of 2D materials.

Miguel was born in Macharaviaya, Spain. He studied physics at Universidad de Sevilla (US) and did his PhD at Universidad Carlos III de Madrid (UC3M), coadvised by Luis L. Bonilla (UC3M) and Antonio Prados (US).


Mario Geiger
Mario Geiger is a PhD at EPFL
Working with Matthieu Wyart

He is studying the neural networks.

 

 

 


Tomer Goldfriend
Postdoc (funding: Simons Grant, 2017-present)
Working with Jorge Kurchan, 2017-present

Tomer Goldfriend is a postdoc at the Ecole Normale Supérieure of Paris, working with Jorge Kurchan. Tomer graduated from the Hebrew University of Jerusalem, where he obtained his M.Sc in the field of astrophysics. In his PhD he switched to soft matter physics, working under the supervision of Haim Diamant in Tel Aviv Univerisity, where he obtained his PhD in 2017. During his PhD he studied the dynamics of driven, arbitrarily shaped, colloids, also collaborating with Tom Witten from the University of Chicago. He studied the hydrodynamic interactions in these suspensions, as well as the fluctuations and hyperuniform structure emerging from their collective dynamics. Currently, he is working on stochastic perturbations of integrable systems.


Benjamin Guiselin
PhD student (funding: CFM Fondation pour la Recherche, 2018-present)
Working with Ludovic Berthier and Gilles Tarjus, 2018-present

Benjamin Guiselin is a PhD student at the University of Montpellier, after graduating with a Master Degree in Physics in September 2018 from the École Normale Supérieure in Lyon. His work is supervised by Ludovic Berthier (Simons PI) and Gilles Tarjus (Simons affiliate) and aims at measuring the configurational entropy, the Franz-Parisi potential and at assessing the existence of the Kauzmann transition in model glass-formers using computer simulations, eventually to constrain the theories of the glass transition.


Varda Faghir Hagh
Postdoc (funding: Simons grant, September 2018- present)
Working jointly with Sidney Nagel, Eric Corwin, and Lisa Manning

Varda received her Ph.D. from Arizona State University in July 2018 and joined the Simons collaboration on cracking the glass problem in September 2018. She is working jointly with Sidney Nagel, Eric Corwin, and Lisa Manning on the marginality gap problem. The focus of her research is to understand the nature and the reason behind any gap that exists between the predictions of the mean-field theories and the simulation results on the behavior of marginally stable disordered systems in lower dimensions. She is also interested in the study of memory formation in disordered jammed packs and is looking into the formation of limit cycles in two-level isostatic systems.


Andrew Hammond
Postdoc (funding: Simons grant, 2017-present)
Working with Eric Corwin

Andrew Hammond is a PhD student at the University of Oregon under the supervision of Eric Corwin. Andrew is using high speed microscopy to study the crossover from ballistic to caged behavior in colloidal glasses as a way to probe the existence of a thermal Gardner transition in real systems.

 


Yi Hu
PhD Student
Working with Patrick Charbonneau, 2016 – present

Yi Hu is a PhD student at Duke University in the department of Chemistry. Yi studies the dynamics of percolating systems, understanding caging and transport behaviors in disordered media by theory and computational techniques.

 


Harukuni Ikeda
Postdoc (funding: JSPS fellowship and Simons Grant)
Working with Giulio Biroli and Francesco Zamponi, 2016-present

Harukuni Ikeda is a postdoctoral fellow at CEA Saclay and ENS Paris. He obtained his PhD in 2017 from Nagoya University under the supervision of Kunimasa Miyazaki with a thesis on a theoretical framework for the glass transition of binary mixtures, especially for large size ratios. His current research activities include (i) the role of a spinodal with disorder in supercooled liquids of finite dimensions and (ii) a theoretical framework for the swap Monte Carlo.


Wencheng Ji
PhD Student
Working with Matthieu Wyart, start from 2016.9

Wencheng Ji is a Phd student in the Physics department of EPFL. He is interested in the properties of the localised excitations like two-level systems and shear transformations and studies the relations between them and quasi-localised modes in amorphous solids by theory and numerical simulation.

 


Dmytro Khomenko
Postdoc (funding: Simons Grant, 11/2017-10/2020)
Working with Dave Reichman and Francesco Zamponi

Dmytro Khomenko obtained his PhD in 2017 from Weizmann Institute of Science under the supervision of Itamar Procaccia and Victor Lvov, where he studied quantum turbulence in superfluid helium. His current research is devoted to molecular dynamics of low-temperature glasses in the quantum regime.

 


Joyjit Kundu
Postdoc (funding: Simons Grant, 2017-present)
Working with Patrick Charbonneau, Ludovic Berthier, Francesco Zamponi, and Silvio Franz.

Joyjit Kundu is a postdoctoral fellow at Duke University in the Chemistry Department. He obtained his PhD from the Institute of Mathematical Sciences, India, in 2015, for work focusing on equilibrium phase behaviour of anisotropic particles on lattices. He then pursued postdoctoral research at Lawrence Berkeley National Laboratory, California, studying gas capture and dynamics in porous materials as well as peptoid nanoscale self-assembly. Currently, he studies the statistical physics of disordered systems, taking a closer look at dynamical criticality as a function of spatial dimensions, using fluids of polydisperse hard spheres.


Cathy Li
PhD Student working with Andrea J. Liu (2018-present)

I’m currently investigating the properties of the MK model computationally. In general, I’m interested in the dynamics and the complexity of glassy systems.

 

 

 


Chloe Lindeman
PhD student (funding: NSF GRFP, 2017-present; Simons Grant, summer 2017)
Working with Sidney R. Nagel (2017-present)

Chloe Lindeman is a PhD student at the University of Chicago. She is currently working with Sid Nagel on modifying spring networks created from jammed packings to elicit a frequency-dependent allosteric response.

 


Alessandro Manacorda
Postdoc
Working with Francesco Zamponi (2018-present)

Alessandro Manacorda is a postdoctoral researcher working at ENS, Paris. He obtained his PhD in 2017 at Rome University Sapienza, with a thesis on lattice models of fluctuating hydrodynamics in granular and active matter under the supervision of Andrea Puglisi. His research activity is now focused on the out of equilibrium dynamics of infinite-dimensional disordered and complex systems.


petermorsePeter Morse
Postdoc with Patrick Charbonneau (2019-present)

Peter Morse is a postdoc in Patrick Charbonneau’s group at Duke University studying the finite size effects of the Gardner transition. He earned his PhD with Eric Corwin at the University of Oregon where he studied the role of geometry in jammed systems via metrics of the Voronoi tessellation in addition to studying the percolation of rigid clusters near jamming. As a postdoc in Lisa Manning’s group, he investigated properties of rearrangements in sheared systems and the relationship between shear and random force.


Misaki Ozawa

Postdoc
Working with Ludovic Berthier, 2016-present

Misaki Ozawa is a postdoctoral fellow at Laboratoire Charles Coulomb in University of Montpellier. He received his PhD in 2015 from University of Tsukuba under the supervision of Kunimasa Miyazaki with a thesis on numerical study of glass and jamming transitions. He is currently working on yielding of amorphous materials with different stability and the development of a computational schemes to measure the configurational entropy in supercooled liquids.


Anshul D S Parmar
Postdoc
Working with Ludovic Berthier

Anshul is a postdoctoral fellow at Laboratoire Charles Coulomb in the University of Montpellier. He received his Ph.D. in 2018 from TIFR India, under the supervision of Srikanth Sastry and Smarajit Karmakar. During doctoral research, Anshul has studied the complex behavior of glass-forming liquids and yielding response of amorphous solid under cyclic shear deformations.
He is currently working to obtain deeply supercooled liquids by tuning the interactions in model liquid.

Nidhi Pashine
PhD student
Working with Sidney Nagel (2015-present)

Nidhi is a graduate student in Physics at the University of Chicago. She works with spring networks and other systems that are based on jamming. She experimentally investigates the properties of such systems and tunes them to show interesting mechanical responses.

 

 


Marko Popovic
Postdoc
Working with Matthieu Wyart

I am a postdoc in with Matthieu Wyart at EPFL, Laussane. I obtained my PhD in Max Planck Institute for Physics of Complex Systems in Dresden working on hydrodynamic description of developing fly wing tissue with Frank Juelicher. Currently I am using elasto-plastic models to study plasticity of amorphous solids.


Riccardo Ravasio
PhD student (funding: Swiss National Science Foundation)
Working with Matthieu Wyart, 2016-present

Riccardo received his master degree in Theoretical Physics in 2016 from Università degli Studi di Milano-Bicocca in Milan, after an exchange at École Polytechnique in Paris and an internship at the Institue of Theoretical Physics of CEA in Saclay. Currently, he is working under the supervision of Matthieu Wyart on the study of elasticity in materials that present specific long-range response as allosteric proteins do in nature.


Sean Ridout
PhD student at University of Pennsylvania (funding: Simons grant)
Working with Andrea Liu (PhD supervisor), 2016 – present

Sean Ridout is a PhD student at the University of Pennsylvania. Under the supervision of Andrea Liu, he is studying critical phenomena near the jamming transition of soft spheres.
 

 


Jason Rocks
PhD student (September 2013-present)
Working with Andrea Liu

Jason Rocks is a PhD student at the University of Pensylvania working with Andrea Liu. He studies disordered complex systems in soft matter and biological physics through a topological lens, utilizing new methods in topological data analysis to identify structural order parameters that govern the physical properties of these systems. His thesis work has focused on using this approach to understand the structural mechanisms by which biological networks, such as allosteric proteins and the brain vasculature, are able to attain functionality.


Félix Roy

PhD student (funding: CFM Fondation pour la Recherche, 2017-present)
Working with Giulio Biroli, 2017-present

Félix Roy is a PhD student at the Institute of Theoretical Physics (IPhT) of CEA, Saclay. Under the supervision of Giulio Biroli, he is currently investigating the dynamics of interacting ecosystems, based on the mean field Lotka-Volterra model with random interactions.

 


Levent Sagun
Postdoc
Working with Giulio Biroli, 2017-present

Levent Sagun is a postdoctoral fellow at CEA Saclay and ENS Paris working with Giulio Biroli. He obtained his Ph.D. in 2017 at the Courant Institute of Mathematical Sciences, NYU. At NYU and Facebook AI Research, he worked with Gerard Ben Arous, Yann LeCun, and Leon Bottou focusing on the loss functions in deep learning, as well as applications of machine learning to social sciences. Levent’s main work in this collaboration is on understanding the geometrical and statistical properties of the loss functions that arise in machine learning algorithms.


James Sartor
Phd student
Working with Eric Corwin

James Sartor is a PhD student at the University of Oregon under the supervision of Eric Corwin. James is directly measuring the entropy of the force configuration of jammed packings by enumerating all of the possible force configurations that will keep a system in mechanical equilibrium.

 


Camille Scalliet
Ph.D. student (funding: three-year scholarship by the University of Montpellier)
Working with Ludovic Berthier and Francesco Zamponi, 2015-2019

Camille Scalliet received her master degree in Theoretical Physics in 2015 from the Ecole Normale Supérieure in Lyon, France. She is a Ph.D. student between the Laboratoire Charles Coulomb, University of Montpellier, and the LPT-ENS Paris, coadvised by Ludovic Berthier and Francesco Zamponi (Simons PIs).

Her research project aims at a theoretical understanding of the nature of the Gardner transition in model glass formers.


Antonio Sclocchi
PhD student (Funding Simons Grant starting September 2017)
Working with Silvio Franz (Starting September 2017)

Antonio Sclocchi is a PhD student of Université Paris-Sud 11 working at LPTMS with Silvio Franz on the dynamics of the glass transition. He graduated in 2016 in Physics of Complex Systems in a joint master between Politecnico di Torino and Université Paris-Sud; his previous research experience regards spin-boson models in quantum physics.


bartolomeBeatriz Seoane
Postdoc (2015-2018) working with Giorgio Parisi, Francesco Zamponi, Patrick Charbonneau, Giulio Biroli.

Beatriz Seoane obtained her PhD in 2013 at the Complutense University of Madrid under the supervision of L.A. Fernández and V. Martín-Mayor with a thesis on computational approaches to problems with complex free-energy landscapes. From 2013-2015, she was postdoc with Giorgio Parisi at “La Sapienza”, University of Rome, researching both on glasses and spin glasses. After that, she worked some months at the CEA-Saclay collaborating with Giulio Biroli, and between July 2015 and October 2018 she has been a Marie Skłodowska-Curie fellow at the LPT in the École Normale Superieure of Paris (working with Francesco Zamponi) with the objective of designing an experimental test of the mean-field theory in simple glasses via numerical simulations. From November 2018, she is working with Alessandra Carbone at the LCQB, Sorbonne Université in Paris, on disordered proteins.


Gabriele Sicuro
​​Postdoc (funding: Simons grant, 2017-2019)
Working with Giorgio Parisi

Gabriele Sicuro is a postdoctoral fellow at Sapienza University of Rome. He obtained his PhD in 2015 at the University of Pisa, under the supervision of Sergio Caracciolo. He spent then two years in Brazil, working at the CBPF in Rio de Janeiro. His research focuses on the application of the statistical physics of disordered systems to random optimization problems. Currently, he is also working on the spectral properties of amorphous solids.


spiglerStefano Spigler
Postdoc at EPFL (Lausanne) and CEA (Paris).
Working with Matthieu Wyart and Giulio Biroli, 2017-present

Stefano Spigler obtained his PhD at the Université de Paris Sud (Paris 11), where he worked under the supervision of Silvio Franz and studied the avalanche response of disordered glassy systems under an external perturbation.

His current research focuses on understanding the statistical properties of the energy landscape of deep neural networks.


Ethan Stanifer
Ph.D. Student
Working with Lisa Manning

Ethan Stanifer is a PhD student at Syracuse University under the supervision of Lisa Manning. Ethan is currently working on structural analyses of amorphous material as predictors of plasticity with the goal to constrain elastoplastic and other continuum models. He also works with sparse random matrix models and their relationship to low dimensional glassy physics.


georgiospic5_simonsGeorgios Tsekenis
Postdoc (funding: Simons grant, 2018-present)
Working with Giorgio Parisi

Georgios Tsekenis is currently a Researcher at the Sapienza University of Rome focusing on jamming and glasses with Giorgio Parisi. Georgios started his studies in Athens, Greece. He got his PhD from the University of Illinois at Urbana-Champaign in 2012 on the avalanching behavior of crystalline plasticity. He published on complex networks at Northeastern University and friction experiments at Harvard before joining the Simons Collaboration on cracking the glass problem. Since then he has published on the Gardner behavior of near crystals and currently is focusing on the energy landscape of jamming and glasses.


Ge_ZhangGe Zhang
Postdoc with Andrea Liu, (2017-present)

At the University of Pennsylvania, he is studying avalanche propagations in quasistatically sheared soft-sphere models using machine learning.