Name: Sabyasachi Tarat

Area of Research: Theoretical Condensed Matter Physics

Contact address:

Link to personal webpage:

Education and Employment: 

Faculty (2022-Present): RKMVERI

Post-Doctoral Fellow (2019-2022): Beijing C.S.R.C., Beijing, China

Post-Doctoral Fellow (2015-2018): Ben Gurion University of the Negev, Israel

Post-Doctoral Fellow (2014-2015): Weizmann Institute of Science, Israel

Ph. D. (2014): Harish-Chandra Research Institute, India

M.Sc. (Physics)(2007): IIT Kanpur, India

Some significant Publications

• Quantum Critical Points and the Sign Problem (submitted) Rubem Mondaini, Sabyasachi Tarat and Richard T. Scalettar
• Magnetic order and transport in a spin-fermion model on a superlattice Sabyasachi Tarat, Li Jian, Richard T. Scalettar and Rubem Mondaini Phys. Rev. B 102, 094423 (2020)
• Reduction of Electron Repulsion and Enhancement of T c in Small Diffusive Superconducting Grains Sabyasachi Tarat, Yuval Oreg and Yoseph Imry Phys. Rev. Lett. 118, 157001 (2017)
• Tunneling Spectroscopy Across the Superconductor-Insulator Thermal Transition Sabyasachi Tarat and Pinaki Majumdar arxiv:1406.5423 (2014)
• A real space auxiliary field approach to the BCS-BEC crossover Sabyasachi Tarat and Pinaki Majumdar Eur. Phys. J. B 88, 68 (2015)
• Charge Dynamics Across the Disorder Driven Superconductor-Insulator Transition Sabyasachi Tarat and Pinaki Majumdar Europhys. Lett. 105, 67002 (2014)
• Pairing fluctuations, the BCS-BEC crossover and strong disorder in super-conductors Pinaki Majumdar and Sabyasachi Tarat J. Supercond. Nov. Magn. 26, 1787 (2013)
• Order-disorder transitions: structural and magnetic ordering in double per-ovskites Prabuddha Sanyal, Sabyasachi Tarat and Pinaki Majumdar Indian J. Phys. 84, 1379 (2010)
• Structural Ordering and Antisite Defect formation in Double Perovskites Prabuddha Sanyal, Sabyasachi Tarat and Pinaki Majumdar Eur. Phys. J. B 65, 39 (2008)

Research Interests

Study of various systems where strong electron-electron correlations lead to fascinating collective phenomena forms the crux of my research. Among other things, such correlations in matter result in co-operative behaviour, leading to the formation of paradigmatic broken symmetry phases like superconductivity, magnetism, charge ordering, etc. These interactions are responsible for captivating phenomena such as driving transitions between different phases, changing a metal to an insulator and vice-versa, forming glassy and quantum spin liquid phases in many disordered or frustrated systems, renormalizing the masses of electrons by thousands of times leading to the so called ‘heavy fermions’, and many, many, more.