Portrait of Sudeep Ghosh

Sudeep Ghosh

Postdoctoral Research Associate

About

Dr. Sudeep Kumar Ghosh obtained his Bachelor in Science degree (2006 – 2009) with first class honors with distinction in physics from Jadavpur University, Calcutta, India. He then moved to the Indian Institute of Science, Bangalore, India for his Master of Science degree (2009 – 2012) in theoretical physics. He stayed in the Indian Institute of Science to pursue his PhD degree (2012 – 2017) working on ultracold fermionic systems under the supervision of Prof. Vijay B. Shenoy. During his doctoral studies, he was involved in an international collaboration with Prof. Matteo Rizzi from Johannes-Gutenberg-Universitaet (JGU), Mainz, Germany. 

Sudeep has moved to the University of Kent, UK as a postdoctoral research associate in May, 2017 in the group of Dr. Jorge Quintanilla. He is funded by the EPSRC project - “Unconventional Superconductors: New Paradigms for New Materials”. He is involved in several complex international collaborations with world renowned experimental groups from Zhejiang University (China), Paul Scherrer Institut (Switzerland), ETH Zürich (Switzerland), University of Warwick (UK) and Rutherford Appleton Laboratory (UK). 

Research interests

Dr. Sudeep Kumar Ghosh is a theoretical condensed matter physicist interested in strongly correlated quantum many body systems. He uses analytical techniques such as group theoretical symmetry analysis, field theoretic bosonization and more, and numerical techniques such as exact diagonalization and Density Matrix Renormalization Group to study physical properties of strongly correlated systems. His main research interests are summarized below: 

Unconventional superconductivity 

Superconductors are materials having zero electrical resistance in the superconducting state. Unconventional Superconductors break more symmetries in addition to the global gauge symmetry. Recent experiments in several unconventional Superconductors have found Time Reversal Symmetry breaking in the superconducting state. Sudeep uses Group theoretic symmetry analysis and Ginzberg-Landau theory to constrain possible forms of order parameters for such superconductors and predict possible novel superconducting ground states. By modeling the realistic band structure for such materials he uses meanfield theory to investigate and predict properties of such superconducting ground states. 

Quantum Simulation 

Cold atoms provide unprecedentedly clean and controlled environment to study quantum many body physics. Sudeep is interested in simulating novel phases of matter using cold atoms in optical lattices arising from an interplay between synthetic gauge fields and strong correlation. 

Low dimensional systems 

Properties of low dimensional quantum systems can be studied fairly accurately due to the availability of good analytical and numerical techniques. Sudeep is interested in investigating the physics of Quasi-1d ladder systems and Luttinger liquids using field theoretic Bosonization, Exact diagonalization and Density Matrix Renormalization Group techniques. 

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