Embedded Files
Google meet link
Google meet link
Program Schedule
Program Schedule
11.55 am: Webinar starts
12.05 pm: Initiation by Convener Dr. Anita Ganguli
12.08 pm: Introduction by HOD, Physics Department
12.12 pm: Address by TIC
12.15 pm: Introduction of 1st speaker by Dr. Jyotirmoy Guha
12.17 pm: Talk (1st speaker) by Dr. Moumita Indra
1.12 pm: Question answer session conducted by Dr. Dipankar Bhattacharyya
1.22 pm: Introduction of 2nd speaker by Dr. Dipankar Bhattacharyya
1.24 pm: Talk (2nd speaker) by Dr. Arpita Das
2.09 pm: Question answer session conducted by Dr.Dipankar Bhattacharyya
2.19 pm: Vote of thanks by convener Subhayu Choudhuri
2.25 pm: Webinar ends
Talk 1
Talk 1
Dr. Moumita Indra, Post-Doctoral Fellow, Dept of Physics, IIT Guwahati, India
A Brief Introduction to Interacting Many-Body Systems: From BEC to FQHE
A Brief Introduction to Interacting Many-Body Systems: From BEC to FQHE
Abstract
The study of interacting many-body systems lies at the heart of modern quantum physics. In this pedagogical talk, we will explore how collective quantum phenomena emerge when particles interact—ranging from weakly interacting Bose gases to strongly correlated fermionic systems. Beginning with the basic idea of Bose-Einstein Condensation (BEC) in ultracold atomic gases, we will discuss the Gross-Pitaevskii equation as a mean-field description of weakly interacting bosons. We'll then transition to lattice systems and the Bose-Hubbard model, where competition between kinetic energy and interaction gives rise to rich quantum phases, such as the superfluid–Mott insulator transition.
The talk will also cover the idea of quantum tunnelling and hopping in optical lattices, and explore how the interaction strength can be tuned to convert a BEC into a BCS-type superfluid, connecting bosonic and fermionic quantum fluids. Finally, we will introduce the Fractional Quantum Hall Effect (FQHE)—a paradigmatic example of a strongly correlated topological phase, where interactions lead to emergent quasiparticles with fractional charge and statistics.
Designed for students with a basic knowledge of quantum mechanics, this talk aims to provide physical intuition and highlight the connections among various many-body phenomena in condensed matter and cold atom systems.
Presentation of the talk is shared here.
Talk1 Many-Body-interacting-System.pdfTalk 2
Talk 2
Dr. Arpita Das, Royal Society Newton International Fellow, Department of Physics, Durham University, UK
Taming the Cold: Creating and Exploring Ultracold Molecules in the Quantum Lab
Taming the Cold: Creating and Exploring Ultracold Molecules in the Quantum Lab
Abstract
What occurs when matter is cooled to a billionth of a degree above absolute zero? At such extreme temperatures, the classical world gives way, and quantum phenomena emerge, revealing entirely new forms of matter and motion. This talk will explore how experimental physicists utilise laser cooling and trapping techniques to slow down atoms, create Bose-Einstein condensates (BECs), and load them into optical lattices—artificial crystals formed from light.
However, why restrict ourselves to atoms? Ultracold molecules, particularly dipolar ones, introduce rich internal structures and long-range interactions into the quantum realm. These characteristics open exciting new frontiers in the study of many-body physics, quantum simulation, and even chemistry at near-zero temperatures. Such systems provide a powerful platform for exploring fundamental quantum phenomena and may serve as building blocks for future quantum technologies. Along the way, I will share how we tame and control these delicate systems in the lab and why this field is rapidly becoming a cornerstone of modern quantum science.
Convener
Convener
Dr. Anita Gangopadhyay, Associate Professor, Department of Physics, Santipur College.
Mr. Subhayu Choudhury, Assistant Professor, Department of Physics, Santipur College.
Patron
Patron
Dr. Braja Kishore Goswami, President Governing Body, Santipur College.
Chairman
Chairman
Dr. Subrata Ray, Teacher-in-Charge, Santipur College.
Organizing Committee
Organizing Committee
Dr. Jyotirmoy Guha, Associate Professor, HOD, Department of Physics, Santipur College, Member IQAC.
Dr. Atreyi Paul, Associate Professor, Department of Physics, Santipur College, Member IQAC.
Dr. Dipankar Bhattacharyya, Associate Professor, Department of Physics, Santipur College, Coordinator IQAC.
Dr. Namrata Ray, Assistant Professor, Department of Chemistry, Santipur College, Member IQAC.
Dr. Amrita Chakraborty, Assistant Professor, Department of English, Santipur College, Member IQAC.
Advisory Committee
Advisory Committee
Dr. Palash Das, Assistant Professor, Department of Physics, Santipur College.
Dr. Dibyendu Biswas, Assistant Professor, Department of Physics, Santipur College.
Mr. Chintaharan Majumder, Assistant Professor, Department of Physics, Santipur College.
Suman Kumar Pal, Int. Ph.D. student, IISc Bangalore.
Rameshwar Mondal, I-Ph.D. student, TIFR Hyderabad.
Hrishit Das, M.Sc. student, IIT Delhi.
Subrata Sarkar, Int. Ph.D. student, IISc Bangalore.
Rana Sadhukhan, Integrated M.Sc.-Ph.D. student, IIT Kanpur.
Page updated
Google Sites
Report abuse