My research interests focus on the large-scale spatio-temporal (hydrodynamic) characterization of interacting many-particle systems driven out of equilibrium. A central objective in this field is to derive effective hydrodynamic descriptions for microscopic interacting particle systems. An important step toward this goal is the determination of transport coefficients, particularly the bulk diffusivity and conductivity (or mobility), which govern the relaxation and fluctuations of conserved quantities. In particular, my research aims to quantify transport properties in two important classes of systems: random-organization models and non-gradient interacting systems. Through a combined analytical and computational approach, my work seeks to bridge microscopic dynamics and macroscopic transport laws, ultimately leading to a unified and microscopically consistent fluctuating hydrodynamics framework applicable to a broad class of active, soft-matter, and driven systems.

• • 279-3620

  • animesh.hazra@apctp.org

  • 514

  • Statistical Physics

    Statistical Physics

Quantum ferroelectric materials, such as bulk SrTiO3, exhibit complex Rashba-type electron-phonon interactions due to broken inversion symmetry. These interactions can significantly alter low-temperature properties near the quantum critical point (QCP), affecting transitions from paraelectric to ferroelectric phases, as well as superconductivity and unique quantum transport phenomena. My primary research focuses on understanding how these interactions influence electron and spin properties near the QCP. Specifically, I investigate how they modify quantum kinetic equations and transport coefficients in bulk systems. Another key area of my research explores how out-of-equilibrium properties are shaped by the topology of the bulk electronic band structure in Weyl semimetals.

• • 279-1290

  • anirban.kundu@apctp.org

  • 531

  • Condensed Matter Physics

    Condensed Matter Physics

My research has largely centered on study physics beyond the Standard Model (BSM) and quantum field theory (QFT), where I have successfully developed a novel mechanism for generating particle number asymmetry (PNA) using a two-particle-irreducible and density operator formalism and have formulated the spacetime evolution of lepton family number densities to analyze wave-packet decoherence and distinguish Dirac versus Majorana neutrino mass types. Building upon these established frameworks in non-equilibrium QFT and neutrino phenomenology, my upcoming research proposes to formulate the time and spacetime evolution of cosmic background neutrino lepton numbers and densities within a curved spacetime framework utilizing the FLRW metric. By extending this formulation to handle mixed states via a density matrix approach in the non-relativistic regime and incorporating conformal coupling theory, this proposed work aims to uncover how gravitational modifications alter neutrino oscillation lengths, clarify mass hierarchies, and determine the cosmological implications of background neutrinos as they depart from thermal equilibrium. Recently, I also work on quantum phenomena using the QFT approach.

• • 540

  • Particle Physics/ Quantum Field Theory

    Particle Physics/ Quantum Field Theory

My research has largely centered on the study of integrable structures appearing in the context of 2-dimensional sigma models and AdS/CFT, with a focus on the exploration of dualities, deformations and integrable boundaries which arise in these settings. Recently, I have been especially dedicated to the study of Auxiliary Field deformations, a new infinite family of integrable deformations of 2d sigma models which includes and extends TTbar and root-TTbar. Progress has been done in understanding their interplay with T-duality, extensions to higher-spin deformations for various classes of sigma models and possible connections to higher dimensional approaches to integrability, but many aspects are still to be uncovered. These include better characterisation of the underlying algebraic structures, extensions to non-Lorentzian deformations and new classes of integrable models, consistency at the quantum level, complete framing within the higher-d picture, possible applications and connections to other research directions. I am also interested in the theory of false vacuum decays and its applications in physics,planning to explore the latest developments on this topic.

• • 279-1291

  • daniele.bielli@apctp.org

  • 531

  • High Energy

    High Energy

My research will centre around the study of exotic phases in quantum many-body systems with generalised (i.e., higher-form and non-invertible) symmetries. Field-theoretical methods (especially those related to conformal field theory and topological field theory) and methods from mathematical physics (e.g., exactly solvable lattice models and quantum integrability) will be extensively exploited. One important objective is to understand robust behaviours of the IR effective theory, dictated by the generalised symmetries, for UV lattice models with strong interactions.

• • 279-3616

  • huachen.zhang@apctp.org

  • 535

  • Interdisciplinary Physics

    Interdisciplinary Physics

My research work in the recent past has focused on the intersection between gravitational physics and quantum mechanics. In quantum information theory, I am interested in different notions of complexity and study them in realistic quantum many-body systems since they are not only very sensitive probes of novel quantum phenomena like quantum phase transition and quantum chaos but also have the power to provide important clues about the microstructure of exotic gravitational systems like black holes. I am currently working on various aspects of quantum complexity and other quantum information theoretic quantities using the tools from differential geometry for many-body systems, both in and out-of-equilibrium to uncover how a quantum state behaves under time evolution and can show novel properties depending on the integrable or chaotic nature of the system.

• • 279-8788

  • kunal.pal@apctp.org

  • 548

  • Statistical Physics

    Statistical Physics

The electronic structure of condensed matter governs its properties and is influenced by factors such as atomic composition, structural arrangement, bonding interactions, and quantum effects. These factors are essential for understanding material behavior and functionality. My research focuses on using density functional theory (DFT) and computational many-body techniques beyond DFT to investigate condensed matter systems. Recently, I have been working on 2D Janus materials, which display broken symmetry at the atomic level and give rise to nontrivial behaviors. By conducting electronic structure calculations, I seek to understand how the unique features of Janus materials relate to their symmetry and structural properties.

• • 279-1419

  • amalia.nadya@apctp.org

  • 521

  • Condensed Matter Physics

    Condensed Matter Physics

My research focuses on the physics of the early Universe, particularly cosmic inflation and the nonlinear dynamics of preheating and reheating. I use high-performance three-dimensional lattice simulations to capture the fully non-linear evolution of these epochs, and I am also exploring quantum-computing approaches to cosmological drift-diffusion equations. A central aim of my work is to connect the dynamics of the primordial Universe and the primordial dark ages with observable signatures such as primordial gravitational waves, primordial black holes, and targets for particle physics searches, mapping the theoretical landscape for the next era of cosmological and gravitational-wave exploration.

• • 279-3618

  • pankaj.saha@apctp.org

  • 515

  • Astrophysics/ Cosmology

    Astrophysics/ Cosmology

My research focuses on gravitational-wave astrophysics and cosmology, with the goal of using gravitational waves from compact binaries to probe the nature of the dark universe and test cosmological models. In gravitational-wave astrophysics, I study how gravitational waves can be used to probe the distribution and properties of dark matter around black holes. The strong gravitational field in the vicinity of a black hole can lead to the formation of dense dark-matter structures, such as dark-matter spikes or other compact dark environments. These structures can modify the orbital evolution of compact binaries and leave characteristic imprints on the gravitational-wave signal during inspiral. Such signatures may provide a new observational window into the nature and distribution of dark matter with future gravitational-wave detectors. In gravitational-wave cosmology, I develop the framework of cosmological standard timers, in which primordial black-hole binaries can serve as a standard timer that encode the cosmic time–redshift relation. By measuring their gravitational-wave signals, this framework can be used to constrain the expansion history of the Universe and test cosmological models. I also investigate void cosmology as a possible framework for addressing cosmological tensions, including the Hubble tension and the cosmic dipole tension. Gravitational-wave observations provide an independent way to test such scenarios, making void cosmology particularly relevant in the era of precision gravitational-wave cosmology.

• • 279-1332

  • qianhang.ding@apctp.org

  • 523

  • Astrophysics/ Cosmology

    Astrophysics/ Cosmology

The opinion dynamics model is a mathematical or computational model used to understand and analyze how individual opinions within a population evolve and change over time. I am interested in examining various statistical properties of opinion dynamics models on complex networks, such as the emergence of phase transitions and scaling phenomena due to external influences. This research will be conducted analytically and computationally across various scenarios or developed models.

• • 279-3642

  • roni.muslim@apctp.org

  • 533

  • Statistical Physics

    Statistical Physics

My research investigates the production mechanisms of exotic hadrons through a coupled-channel approach, with particular focus on heavy pentaquark systems. This methodology will provide valuable analysis for experimental results on exotic hadron production across various decay channels while serving as a guide for experimentalists searching for additional exotic structures and deepening our understanding of QCD in the non-perturbative regime.

• • 279-1357

  • samson.clymton@apctp.org

  • 540

  • Nuclear Physics

    Nuclear Physics

In the laboratory, space, and astrophysical plasma environment, the proper understanding of dusty plasma and wave propagation characteristics are crucial in diverse fields such as laboratory applications (fusion devices, semiconductor industry, etc.) and spacen exploration. The charge perturbation induced on the equilibrium space dusty plasma by the space debris and meteoroids affects the linear and nonlinear wave properties. Recently, I am focused on dust dynamics, dust charge fluctuations, dust levitation, sheath characteristics of the lunar surface (sheath instability due to the presence of charge dust particles as Rayleigh-Taylor instability), Landau damping phenomenon, linear and nonlinear wave properties in the magnetized and unmagnetized laboratory, space and astrophysical dusty plasmas. In addition, I am interested in exploring the plasma wave dynamics on strongly and weakly coupled magnetized astrophysical dusty plasma, wave instabilities driven by temperature anisotropy, quantum dusty plasma applications to neutron stars, and particle transport phenomenon in rotating plasma (astrophysical and space plasmas).

• • 279-8787

  • suresh.basnet@apctp.org

  • 548

  • Astrophysics / Cosmology

    Astrophysics / Cosmology

I would like to work on various aspects of strong gravity employing electromagnetic and gravitational waves (aka multi-messenger probes). I aim to focus on the interaction among electromagnetic and other fields in strong gravity regions. Also, I want to explore how the presence of gravitational waves influences these mechanisms. These mechanisms can explain coupling among different fields and particles, enabling us to test general relativity in the strong regime.

• • 279-1474

  • susmita.jana@apctp.org

  • 522

  • Astrophysics / Cosmology

    Astrophysics / Cosmology

My research interests focus on early universe cosmology, primordial black holes (PBHs), scalar-induced gravitational waves (SIGWs), primordial non-Gaussianity, and the quantum dynamics of cosmological perturbations and gravity. I am particularly interested in exploring physics beyond the standard slow-roll inflationary paradigm and understanding how non-linear and non-perturbative effects in the early universe can produce observable signatures. Recently, my work has mainly focused on the formation of primordial black holes and the generation of induced gravitational waves in inflationary models with transient non-slow-roll phases. I study how non-Gaussian statistics and non-linear gravitational dynamics modify the connection between primordial fluctuations, PBHs, and gravitational wave signals. More broadly, I am interested in theoretical approaches to strongly non-linear gravitational systems in cosmology, including stochastic inflation, cosmological perturbation theory, and gradient expansion methods. I am also interested in connecting these theoretical developments with current and future observations. My long-term goal is to better understand the quantum and non-linear nature of gravity in the early universe and its observational consequences.

• • 279-1281

  • xiaohan.ma@apctp.org

  • 514

  • Astrophysics / Cosmology

    Astrophysics / Cosmology

Constructing a theoretical framework for strange metals is a central challenge in condensed matter physics. My research uses SYK-inspired models to investigate the emergence of strange metals. I have developed models that capture strange-metal behaviour and proposed new perspectives linking disorder and entanglement. Looking ahead, I plan to extend these models to reproduce universal transport signatures, analyse the entanglement structure underlying strange-metal properties, and build holographic duals that overcome current low-temperature limitations.

• • 279-8790

  • yili.wang@apctp.org

  • 548

  • Condensed Matter Physics

    Condensed Matter Physics

Understanding and exploiting the properties of materials are essential goals in condensed matter physics and materials science. In this regard, first-principles quantum-mechanical calculations based on density functional theory (DFT) have emerged as one of the most important components of the theorist’s toolbox, as they have successfully revealed material properties at feasible computational costs. My research focuses on solid-state materials containing d- or f-orbital electrons, with the aim of investigating their microscopic electronic and magnetic properties using DFT calculations and low-energy effective model analysis. In particular, I am interested in the responses of these systems to various external or internal perturbations, such as pressure, magnetic fields, doping, and defects. To properly account for many-body effects arising from spatially localized d or f shells, dynamical mean-field theory combined with DFT will also be incorporated.

• • 279-1417

  • youngjoon.song@apctp.org

  • 521

  • Condensed Matter Physics

    Condensed Matter Physics