# Team

**Professor Jason R. Green, Principal Investigator**

Jason Green is an Associate Professor of Chemistry and Physics at the University of Massachusetts Boston. He received a B.S. from Case Western Reserve University (cum laude) and a Ph.D. from Purdue University, supported by a NASA Graduate Student Researchers Program Fellowship. After an NSF Postdoctoral Fellowship at the Universities of Chicago and Cambridge, he was a Postdoctoral Research Associate at Northwestern University. His research interests are at the intersection of statistical mechanics, nonlinear dynamics, and information theory and their application to complex systems in chemical physics.

###### Postdoctoral researchers

**Swetamber Das, Postdoctoral Research Associate**

*Starting Fall 2024: Assistant Professor, Department of Physics, SRM University (India)*

Dr. Swetamber Das joined the group in April 2020 as a postdoctoral associate after spending two years as a visiting scientist at the Max Planck Institute for the Physics of Complex Systems (MPI-PKS) Dresden (Germany). He obtained his PhD in 2018 from the Indian Institute of Technology Madras, Chennai (India) under Prof. Neelima M. Gupte. His PhD work was on impurity dynamics, transport, and synchronization in nonlinear discrete-time systems. He then joined MPI-PKS to explore the origins of partial barriers to transport in volume-preserving systems, with Prof. Arnd Bäcker. At MPI-PKS, he also developed an interest in biophysics and investigated a kinetic model of a gene regulatory motif exhibiting the influence of protein resource sharing. His interests and expertise are in the field of nonlinear dynamics and chaos and his current research involves classical speed limits on the response of dynamical systems.

**Aishani Ghosal, Postdoctoral Research Associate**

Dr. Aishani Ghosal joined the group in January 2023 as a postdoctoral research associate and has been working on speed limits in stochastic thermodynamics. From 2020 to 2022, she worked on stochastic thermodynamics of partially observed systems in the group of Dr. Gili Bisker at Tel Aviv University, Israel. Before that she was a visiting scientist at S N Bose National Centre for Basic Sciences, Kolkata (India), after finishing my Integrated Ph.D. degree in 2019 on theoretical studies of the non-equilibrium statistical mechanics of colloidal and polymeric systems at the single molecule level at Indian Institute of Science, Bangalore (India) under the supervision of Prof. Binny J. Cherayil.

**Erez Aghion, Postdoctoral Research Associate**

*Starting Fall 2024: Assistant Professor, Department of Physics, University of Louisiana*

Dr. Erez Aghion joined the group in March 2021 as a postdoctoral associate. He is currently working on speed limits in stochastic thermodynamics. From 2019 to 2021, he worked as a visiting scientist at the Max Planck Institute (MPI-PKS) in Dresden, Germany in the group of Holger Kantz. There, he focused on methods for deciphering anomalous diffusion in empirical time series. He completed his PhD at Bar-Ilan University, Israel, in 2019 under the supervision of Prof. Eli Barkai. His PhD research was on the physical applications of infinite-density functions for anomalous diffusion and unconfined thermal systems out of equilibrium. His experience so far is in stochastic processes, including stochastic thermodynamics, modeling, simulations and analysis.

###### Graduate students

**Walter Lai, Ph.D. Student (Computational Sciences)**

Walter joined the group in January 2023 as a Ph.D. student in Computational Sciences. He previously has worked as a software developer for FDM Group in which he developed automated reporting programs for financial institutions. His current research focuses on predicting energy dissipation in systems far from equilibrium using large scale molecular dynamics simulations.

**Brendan Lucas, Ph.D. Student (Computational Sciences)**

Brendan joined the group in September 2023 as a Ph.D. student in Computational Sciences. He previously has worked as an undergraduate researcher at the University of Massachusetts Lowell. His current research focuses on thermodynamic speed limits and machine learning.

**Sepideh Ein Moghassemi, Ph.D. student (Chemistry)**

Sepideh began as a graduate student in the Physical Chemistry Ph.D. program in September 2022. She graduated with a Master’s degree in Physical Chemistry from the Iran University of science and technology. At IUST, she worked under Dr. Majid Hashemianzadeh and Dr. Sajad Ghareghani in the Application of regression methods, dynamic simulation, and classification methods for estimating solubility and predicting the partition coefficient of 200 medicines. During her master's degree, she also collaborated on a project using the ANI-1 neural network to predict the potential energy surface of some medicines. Her Ph.D. research involves the application of machine learning techniques to optimize, and predict dynamic behaviors, and developing these techniques for the function of materials.

**Mohamed Sahbani, Ph.D. Student (Physics)**

Mohamed joined the group in September 2021 as a Ph.D. student in Physics. His current research focuses on a classical density matrix theory. Within that theory, he is constructing a Fisher information in the tangent space of deterministic systems that is analogous to the quantum Fisher information and applying it to low-dimensional regular and chaotic dynamical systems.

**Tae Hyun Ueon, Ph.D. student (Chemistry)**

Tae joined the group in September 2022 as a Ph.D. student on the Physical Chemistry track. He spent three years in Sydney University with a major in Neuroscience before transferring to UMass Boston in the Fall of 2018 with a major in Chemistry. He graduated with a Bachelor's Degree in 2022 (summa cum laude). At UMass Boston, he worked on a project with Prof. Neil Reilly modeling the electronic spectrum of alpha-hydrofulvenyl radical in the framework of Franck-Condon-Herzberg-Teller theory. His research currently focuses on speed limits in stochastic thermodynamics.

#### Former group members

**Rebecca Bone, Ph.D. Chemistry 2022**

*Now Postdoctoral Research Associate at NIST/Theiss Research*

Rebecca began as a graduate student in the Chemistry Ph.D. program in September 2017 after graduating with a Bachelor’s degree in Chemistry from Iona College (magna cum laude). At Iona, she worked under Dr. Mychel Varner in the electronic modeling of the atmospheric reactions of the neonicotinoid pesticide thiacloprid. In the summer of 2016, she worked under Dr. Paul Maggard in the development of Dye-Sensitized Solar Cells at North Carolina State University at the Research Experience for Undergraduates site ‘Exploring the Interface between Experiments and Computation’ from the NSF. Her Ph.D. research involved the development of methods and tools to characterize complex systems by leveraging time-dependent probabilities of stochastic paths.

**Sky Nicholson, Research Assistant Professor**

*Now Research Assistant Professor at Northwestern University*

Dr. Schuyler Nicholson was a Research Assistant Professor in the group. He graduated from Clarkson University in Potsdam NY with a B.S. in Physics in 2008 and an M.S. in Physics in 2010. He then began his doctoral work at the University of Sheffield in the UK under Dr. Eun-jin Kim. At Sheffield, he worked on developing tools in nonequilibrium statistical mechanics and extending geometric representations of complex systems. Upon successfully defending his Ph.D. in 2015, Schuyler began his postdoctoral work using information theory to tackle a range of questions in complex chemistry and nonequilibrium statistical mechanics.

**Zachary Nicolaou, Postdoctoral Research Associate**

*Now WRF Postdoctoral Fellow at the University of Washington*

Dr. Zachary G. Nicolaou joined the Green research group as a Postdoctoral Research Associate in September 2020. He defended his thesis on the analysis of partial differential equations governing interfacial fluid dynamics at Caltech in 2016, under the supervision of Dr. Sandra Troian. Following his Ph.D., he studied synchronization and pattern formation phenomena as a Postdoctoral Researcher in the group of Adilson Motter at Northwestern University. His research focuses on the emergence of complex dynamics, such as patterns of synchrony in classical and quantum networks, collective behavior of coupled waves and topological defects, and critical phenomena emerging from symmetries, with an aim to control and design complexity for self-assembly of novel materials and processes.

**Louis Perrin, Visiting MS student**

Louis was a visiting graduate student from the Ecole Normale Supérieure de Rennes (mechatronics department) who worked with Tamiki Komatsuzaki in the Research Institute of Electronic Sciences at Hokkaido university during 2021 (remotely due to COVID-19). His research currently focuses on molecular dynamics and information theory. More specifically, his work is about inferring the interaction potential energy of particles based on a set of trajectories with information-theoretic tools.

**Shrabani Mondal, Former Postdoctoral Research Associate**

*Now Assistant Professor at Jadavpur University*

Dr. Shrabani Mondal joined the group as a Postdoctoral Research Associate after receiving her doctoral degree from Visva-Bharati University India, supported by CSIR Junior and Senior research fellowships. At Visva-Bharati, she worked under Dr. Bidhan Chandra Bag in the area of non-equilibrium statistical mechanics. She was involved in exploring aspects of Brownian motion in barrier crossing dynamics, dynamics of complex systems (aggregation kinetics and cluster formation), stochastic resonance, ambient energy harvesting, and the microscopic theory of heat transfer. Her current research involves the development of theory for dynamic matter using statistical mechanics and information theory.

**Jonathan Delgado, B.S. Physics/Mathematics 2021**

*Now Ph.D. student in Mathematics at the University of California, Irvine*

Jonathan joined the group in the fall of 2018. His research focused on the connections between information theory and thermodynamics. More specifically, he was working on theory to decompose information-theoretic quantities describing physical and macroscopic phenomena away from thermodynamic equilibrium.

**Jonah Greenberg, B.S. Chemistry/Mathematics 2019**

*Now Ph.D. student in Chemistry at Northwestern University*

Jonah joined the group in the spring of 2016. His research focused on the dynamical scaling of stochastic chemical kinetics and stochastic thermodynamics. In the fall of 2019, he joined the Department of Chemistry at Northwestern University to pursue his Ph.D.

**Dr. Moupriya Das, Postdoctoral Research Associate**

*Now Assistant Professor School of Basic Sciences IIT Mandi*

**Dr. Lucas Newcomb, Ph.D. Chemistry 2018**

*Now Senior Process Engineer, Diodes Inc.*

**Dr. Shane Flynn, B.S. Chemistry/Biology**

*Now Data Scientist at AIS,*

M.S. California Institute of Technology,

Ph.D. University of California, Irvine

M.S. California Institute of Technology,

Ph.D. University of California, Irvine

**Jonathan Nichols, B.S. Chemistry**

*Now Biosensor Scientist at Nova Biomedical*

*M.S. University of Rhode Island*

**Volkmar Koller, Visiting MS student**

Justus-Liebig-Universität Giessen

**Will Fatherley, B.S. Chemistry**

*Now Process Engineer at Allegro MicroSystems*

**Dr. Mohammad Alaghemandi,**

**Postdoctoral Research Associate**

*Now Computation and Systems Manager, Alsym Energy*

**Dr. Jesus del Pozo, Postdoctoral Research Associate**

*Now at Technical University of Eindhoven*

**Dr. Chengju Wang, Postdoctoral Research Associate**

*Now Senior Engineer, Apple*