Remembering Prof. Stephen Hawking

by Daksh Lohiya
23rd March (Friday) @ 5:00 PM


Breaking the RET barrier using Metamaterials

by Rahul Deshmukh (CUNY, USA)
21st December (Thursday) @ 5:00 PM


Topological Order in Quantum Matter

by Prof. Subir Sachdev
(Harvard University, Cambridge)

20th November (Monday) @ 3:00 PM


Welcome to SPS Journal Club

Upcoming Talk :

'Remembering Prof. Stephen Hawking'

Speaker: Prof. Daksh Lohiya

Position: Professor

Affiliation: Dept. of Physics & Astrophysics, University of Delhi

Prof. Lohiya did his PhD under the supervision of Prof. Hawking while he was at Cambridge.

Date: 23rd March, 2018 Time: 5:00 PM
Venue: Seminar Hall, SPS

Abstract : A lot is already known and written about his life. I will share some personal moments and events, some of his ideas as they evolved and some anecdotes.




21st Dec (5:00 PM) : Journal Club Physics Talk

'Breaking the RET barrier using Metamaterials'

Speaker: Rahul Deshmukh

Position: Doctoral Student

Affiliation: The Graduate Center, City University New York, USA

Date: 21st Dec, 2017 Time: 5:00 PM
Venue: Seminar Hall, SPS

Abstract : Resonance Energy Transfer (RET) between molecules is perhaps most famously known for its use in determining molecular structures. It is a direct interaction between two dipoles/molecules and its efficiency is governed by the distance between the molecules. This precise distance dependence makes it a very convenient ‘ruler’ for biologists but it’s useful in measuring distances of only up to 12-15 nm. Extending this range would be great, not only from the point of view of being able to study supermolecular assemblies, but also in photovoltaics where increased RET efficiency can greatly improve artificial light harvesting and energy storage. I will discuss our work in breaking this barrier using metamaterials – a class of composite man-made materials with novel properties that can be easily tuned to suit our requirements. We exploit this tunability and show RET between a donor-acceptor pair separated by a distance of 160 nm.



Recent Publications from SPS



Finite-Range Coulomb Gas Models of Banded Random Matrices and Quantum Kicked rotors.

A. Pandey*, Avanish Kumar*, S. Puri*

Phys. Rev. E 96, 052211 – Published 16 November 2017



Experimental study of relaxation dynamics in solid solutions of benzene, hexa-substituted benzenes. I

Abhishek K. Singh*, S.S.N. Murthy*

Thermochimica Acta, 657,  98-103 – Published 10 Nov 2017



Experimental study of relaxation dynamics in solid solutions of benzene, hexa-substituted benzenes. II

Abhishek K. Singh*, S.S.N. Murthy*

Thermochimica Acta, 657,  86-97– Published 10 Nov 2017



Appending Diverse p-Extended Acceptors with TTF Donors: Multistate Redox, Radical Ion Generation and Mid-IR Absorbing Mixed-Valence States

Sudhir Kumar Keshri*, Deepak Asthana*, Sonam Chorol*, Yogendra Kumar*, P. Mukhopadhyay*

Chemistry – A Europian Journal, Accepted online: 27 Oct 2017



Effect of Cu2+ substitution in spin-orbit coupled Sr2Ir1−xCuxO4: Structure, magnetism, and electronic properties

Imtiaz Noor Bhatti*, R. S. Dhaka, A. K. Pramanik*

PHYSICAL REVIEW B 96, 144433 (2017) – Published 26 Oct 2017



First graphene oxide promoted metal-free nitrene insertion into olefins in water: towards facile synthesis of activated aziridines

Prashant Shukla*, S. Mahata, A. Sahu, M.  Singh, V.K. Rai, A. Rai*

RSC Adv., 2017,7, 48723-48729 -Published 17 Oct 2017



Ordering kinetics in the random-bond XY model

Manoj Kumar*, S. Chatterjee, R. Paul, and Sanjay Puri*

Phys. Rev. E 96, 042127 – Published 16 October 2017



Biophysical insight into the heparin-peptide interaction and its modulation by a small molecule

Neha Tiwari*, Ankit Srivastava*, Bishwajit Kundu, M. Munde*

J. Mol. Reco. - Published 29 September 2017



Effect of T·T Mismatch on DNA Dynamics Probed by Minor Groove Binders: Comparison of Dynamic Stokes Shifts of Hoechst and DAPI

Him Shweta*, M. K. Singh*, Kavita Yadav*, Sachin D. Verma*, Nibedita Pal*, Sobhan Sen*

J. Phys. Chem. B, Article ASAP - Published 18 Sept 2017

* Authors from SPS