Lecture: Decomposing complex-systems using continuum and quantum mechanics

Dear All,




BANGALORE – 560 012


Cordially invites you for a short lecture on


“Decomposing complex-systems using continuum and quantum mechanics”




Dr. Siddharth Ghosh

DFG Fellow ,

St. John’s college, Cambridge



Date:  Friday, 29th  November, 2019


Time:    11.00 A.M


Venue:  Lecture Hall 1, Dept. of Instrumentation and

Applied  Physics





Complex-systems require a broad range of computational and experimental tools. At continuum domain, multi-variable decomposition often NP hard and at nanoscale domain, uncertainty principle acts as the biggest barrier. My research interest is to develop quantum coherent (in other words non-dissipative) methods to detect single molecules for ultra-fast dynamics. Some of the key interdisciplinary topics of my research are confined light-matter interaction, single-molecule nanofluidics, noninvasive functional dynamic mapping of cells, mesoscopic persistent current in macromolecules, and a living-lab of research-education. I will give two example of continuum mechanics – nanotribology of soft-matter (like PDMS and articular cartilage) and nanomechanics of atomic defects in inorganic solid-state-matter. The nanoscale continuum is fragile in fluid when single-molecules flow at the border of continuum and quantum world, it is intriguing to play at this interface to see who wins. In quantum mechanics, phonons represent vibrational relaxation of a quantum systems. Can we see an interface where phonons and electrons couple to each other? To answer this, I will also touch upon experimental and theoretical insight of light-matter interaction in nanomaterials, like carbon nanodots, graphene quatum dots, and ZnO nanorods. In order to play in these fields, manipulation of optics and electron-optics is important. I will also show how to use single-photon optics to beat the resolution of conventional optical lithography by demonstrating a method for ultra-high aspect nanostructures and electron-beam to enclose nanotrenches to create nanofluidic channels. If time permits, I will talk about single nanoparticle electrostatic traps, mesoscopic persistent current, and a living-lab situation to understand the evolution of research-based education from the perspective of quantum coherence.



Dr. Ghosh did his PhD in the International Max Planck Research School for Physics of Biological & Complex Systems (IMPRS-PBCS), Gottingen. Prior to that he obtained an M. Phil in Mechanical Engineering from Birmingham University, and a B. Tech in Bio-Technology from Visvesvaraya Technological University, Karnataka. Dr. Ghosh’s research is in the areas of Nanophotonic and Nanofluidic studies of Biomolecular Interactions , nanomechanics and Single molecule optics, active transport and light-matter interactions in nanostructures.


                 ALL ARE   WELCOME                                                                                                                                                                                                                                  


Date(s) - 29/11/2019
11:00 am - 12:00 pm

Lecture Hall-1, Dept. of Instrumentation & Applied Physics.
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