Physical Reviwew Letter publication by Mr. Adway Kumar Das and Dr. Anandamohan Ghosh. Congratulations!
Joint research of bioNap & Light Matter Lab is in the cover page of Physical Review Letters!
“Spin-Direction-Spin Coupling of Quasiguided Modes in Plasmonic Crystals” has been published in Phys. Rev. Lett. 131, 193803 (2023) and featured on the cover page. Jeeban Kumar Nayak, a Ph.D. student of DPS and a former BS-MS student, is the primary author of this paper. The other students who were involved in this research are, Shyamal Guchhait (PhD), Harley Suchiang (former BS-MS student), and Subir Kumar Ray (former PhD student).
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Posted on: November 13th, 2023
IISER Kolkata wins GOLD in iGEM 2023!
The IISER Kolkata iGEM team has bagged Gold in the iGEM 2023 competition. The team included three students from the Department of Physical Sciences - Soumyajit Datta, Swarnendu Saha, and Pratyay Pal.
Prof. Rumi De from the DPS was one of the PIs whose guidance was invaluable!
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Posted on: November 7th, 2023
𝗦𝗵𝗼𝗼𝘁 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗦𝗨𝗡!
Prof. Dibyendu Nandi and a team of students and staff from CESSI and Physics were invited to witness the launch of the ISRO Aditya,-L1 mission from Sriharikota. CESSI, IISER Kolkata personnel have contributed to the development of the Solar Ultraviolet Imaging Telescope onboard the Aditya-L1 satellite. Prof. Nandi is a Co-I on the mission and a member of the Aditya Science Working Group. As Chairperson, he also led the Aditya-L1 Space Weather Monitoring and Predictions Plan Committee for ISRO envisioning how mission data can be used to extract space weather relevant information.
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Posted on: September 9th, 2023
NB on Teachers' Day!
On this Teachers' Day, the 5th of September 2023, IISER Kolkata felicitated Prof. Narayan Banerjee.
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Posted on: September 9th, 2023
'UNIVERSE' written by our postdoctoral fellow Dr. P. C. Lalremruati!
This book, "UNIVERSE" written in the Mizo language, is part of an
astronomy outreach for the local Mizo people. The book is prepared
precisely in most laymen's terms without losing the philosophy of science.
This is the first-ever book recorded in Mizo literature that is mainly
devoted entirely to the understanding of the universe. The book starts with
an introduction to particle physics and ends with the ultimate fate of the
universe. It also includes chapters separately on a timeline of astronomy,
the importance of astronomy in daily life, an introduction to the general
theory of relativity, the large-scale structure of the universe, exploring the
solar system, the life of stars, the galactic centre, exoplanets and
astronomical techniques.
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Posted on: August 10th, 2023
𝐁𝐞𝐬𝐭 𝐓𝐡𝐞𝐬𝐢𝐬 𝐀𝐰𝐚𝐫𝐝 for Niladri Modak
Niladri Modak, IPhD student of the Department of Physical Sciences (DPS) and working in the bio-optics & Nanophotonics (bioNap) laboratory, has received the best thesis award in the 15th PHOTONICS conference organized at IISc, Bengaluru during 5-8 July 2023.
The biennial international conference PHOTONICS is a premier conference in the emerging areas of Photonic science and technologies and Optical Physics. Niladri’s PhD thesis entitled, “Weak Measurements in Spin-Orbit Optical Systems: Fundamental Consequences and Application Prospects” has been selected for the best thesis award in the Doctoral Symposium of PHOTONICS 2023. Congratulations Niladri!
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Posted on: July 14th, 2023
Director’s Gold Medal and Chairman’s Gold Medal for Suprabha Mukhopadhyay.
Congratulations Suprabha Mukhopadhyay (18MS095) for receiving both Director’s Gold Medal (highest CGPA in the DPS) and the Chairman’s Gold Medal (Best academic performance of a student securing overall highest CGPA across all departments). The award has given on the occasion of the 10th convocation of IISER Kolkata on the 27th of July, 2023.
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Posted on: June 29th, 2023
Fazal Kareem, a DPS undergraduate student, is a part of the collaboration of the gravitational wave discovery.
Indian Pulsar Timing Array reports early signs of a Gravitational Wave background in our combined dataset with the European Pulsar Timing Array. These results corroborate with those from NANOGrav and Parkes Pulsar Timing Array. This background likely has its origins in merging supermassive black holes all across the universe, though the signal may have signs of other phenomena such as phase transitions in the earth universe. These experiments use radio telescopes to observe pulsars, rapidly rotating neutron stars which can be used like celestial clocks. As GWs are perturbations in space-time, these experiments detect a change in the way these clocks keep time, hence detecting gravitational waves. Fazal Kareem, an undergrad student at IISER Kolkata is a part of the InPTA team which
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Posted on: June 29th, 2023
DPS student involved in 12 exoplanets hunt using statistical tools
Surendra Bhattarai (19MS136) and his team worked on exoplanets detection using Statistical tools like TRICERATOPS, VESPA, and other methods (lightcurve, and radial velocity) since last year, and the paper got published in Monthly Notices of the Royal Astronomical Society (MNRAS): "VaTEST I: Validation of Sub-Saturn Exoplanet TOI-181b in Narrow Orbit from its Host Star". Many many congratulations.
MNRAS DOI: https://doi.org/10.1093/mnras/stad543 arxiv: https://arxiv.org/abs/2211.07957 After their first successful attempt, they expanded the study and validated 11 more new exoplanets. And this can be also be found on our 2nd paper: "VaTEST II: Statistical Validation of 11 TESS-Detected Exoplanets Orbiting K-type Stars" https://arxiv.org/abs/2301.09865 , which is published a few days ago in the Astronomical Journal (AJ).
And this work got highlighted in Times Of India press release:
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Posted on: June 8th, 2023
Adway Kumar Das received Fulbright Nehru Doctoral Research Fellowship.
We are happy to share the news that Adway Kumar Das, Ph.D. student of Prof. Anandamohan Ghosh of DPS, has won the 2023-24 Fulbright Nehru Doctoral Research Fellowship. Many congratulations to him and Prof. Ghosh.
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Posted on: May 23rd, 2023
ADG receives INSA Teachers Award!
Dr. Arnab Chakrabarti becomes an Assistant Professor!
Good news from the Spin Lab! Our former member Dr. Arnab Chakrabarti joined as an assistant professor in the Department of Physics, Rajiv Gandhi University. Congratulations Arnab! Wish you all the best, Arnab!
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Posted on: May 5th, 2023
Soumya Mukherjee wins the best poster prize!
Dr. Debdatta Ray is awarded the INSPIRE Faculty Fellowship
Dr. Debdatta Ray, a National Post-Doctoral Fellow, working in bioNAP lab, Department of Physical Sciences, IISER Kolkata has recently been awarded the INSPIRE Faculty Fellowship. Her award-winning proposal is “Spin-orbit photonics in the palm of your hand: A first-of-its-kind miniaturized weak measurement
meta-device with SOI metasurfaces”.
Before joining IISER Kolkata, Dr. Ray was working as a post-doctoral fellow in the University of Muenster, Germany with the Women in Science (WIRE) Fellowship. She was also awarded the Swiss Government Excellence Scholarship to complete her Ph.D. from the Swiss Federal Institute Of Technology, Lausanne (EPFL, Switzerland).
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Posted on: April 13th, 2023
Dr. H. V. Ragavendra publishes in Physical Review Letters: Observing Nulling of Primordial Correlations via the 21-cm Signal
The behavior of primordial quantum fluctuations generated during inflation dictates the distribution of dark matter haloes in the universe at later times. These haloes attract gas clouds which gravitate to form galaxies and clusters of galaxies that we observe today. In this work, it is shown that in a specific class of inflationary models, called ultra slow-roll inflation, the primordial scalar fluctuations can be nullified at a specific scale so that the corresponding distribution of dark matter haloes will be suppressed over that scale. This effect gets imprinted as a dip in the spectrum of 21-cm lines emitted by hydrogen gas clouds that are captured by these haloes during the Dark Ages. Interestingly, such a dip can be detected by future 21-cm observatories such as an array of radio detectors on the far side of the moon. If detected, such a dip in the signal will confirm an ultra-slow roll model of inflation. This in turn shall have interesting implications for other phenomena predicted by the model such as the amplification of primordial tensor fluctuations that propagate as stochastic gravitational waves.
Journal Reference: Shyam Balaji, H. V. Ragavendra, Shiv K. Sethi, Joseph Silk, and L. Sriramkumar, Phys. Rev. Lett. 129, 261301 – Published 22 December 2022
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Posted on: February 17th, 2023
Nilanjana Chanda wins the Best Paper Presentation award
Nilanjana Chanda, a DPS IPhD student working under the supervision of Prof. Rangeet Bhattacharyya, won the Best Paper Presentation award for the paper titled \"Optimal fidelity in implementing Grover\'s search algorithm on the open quantum system\", at the International Conference on Quantum Computing and Communications (QCC-2023). The conference was hosted at Baba Farid College (affiliated with Punjab University), Bathinda, Punjab, India. February 9-11, 2023.
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Posted on: February 16th, 2023
INSA Teacher Award 2022 for ADG
Many congratulations to our very own ADG (Dr. Ananda Dasgupta) for the INSA Teacher Award 2022. The INSA website reads "Prof. Ananda Dasgupta has distinguished himself as a physics educator par
excellence, over a wide variety of subjects in physics, both theoretical and
computational. His teaching has consistently inspired several students over
the past two decades, spanning undergraduate, postgraduate and research
levels."
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Posted on: February 1st, 2023
IISER Kolkata is the winner of IICM 2022
It is an honour for the Department of Physical Sciences to have talented students who made us proud by making IISER Kolkata the winner of IICM 2022. Hearty congratulations to the following DPS students who were a part of the IISERK contingent:
Gold :
Arkadeep Mitra (Debate)
Anurit Dey , Sanchari Ray (Short film)
Silver :
Anchit Bhair , Ritwik Piduri, Sanchari Ray, Angshuman Bhandari, Arkoprava Ganguly (Drama)
Angshuman Bhandari, Arikta Saha , Anchit Bhair (Short Film)
Bronze :
Namrata Banerjee (Wall Painting)
Rajit Sen , Rajrupa Mondal (Battle of Bands)
We will also like to congratulate all the other DPS students who were part of the IICM 2022 contingent from IISER K which includes :
Saisrinivas Dhavala (Quiz), Sounak Sinha Biswas (Quiz), Barnali Das(Face painting), Navonil Saha (Photography), Meghna Dutta (Dance), Siddhartha Bandyopadhyay (Dance)
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Posted on: January 2nd, 2023
Raj takes charge of Dean, Research and Development
Prof. Satyabrata Raj has recently been appointed as the Dean of Research and Development. Congratulations to him!
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Posted on: December 18th, 2022
Dr. Samrat Roy won the Best Thesis award
Dr. Samrat Roy won the Best Thesis award in the National Laser Symposium that recently took place at IIT-Kharagpur. Samrat's thesis was supervised by Prof. Bipul Pal. Congratulations Samrat!
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Posted on: December 8th, 2022
Rajni wins essay competition
Mrs. Rajni Marick from DPS received the 1st prize in an essay writing competition held during Vigilance Awareness Week. In the picture, she is receiving the certificate from Srihari Pandey, IPS (DCP, North Zone), Barrackpore Div. Congratulations Rajni!
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Posted on: November 13th, 2022
Prof. Nirmalya Ghosh: Fellow of the National Academy of Sciences
Qauntum Hamilton-Jacobi Formalism
PMRF @ DPS
Congratulations to Sampurna Karmakar and Saikat Dutta from DPS for receiving the prestigious PMRF fellowship.
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Posted on: October 26th, 2022
Dr. Sayan Choudhury from DPS joins Harish-Chandra Research Institute
Our Alumni Dr. Sayan Choudhury from DPS has joined Harish-Chandra Research Institute as a faculty. He is working on the Many-body Physics of Quantum and Ultracold Matter. Congratulations Sayan!
https://twitter.com/Sayan_Quantum/status/1575077117330526208
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Posted on: October 14th, 2022
World’s Top 2% Scientists
Congratulations to Prof. Soumitro Banerjee from DPS for being enlisted in the "World’s Top 2% Scientists" Catalog in 2022.
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Posted on: October 13th, 2022
Prof. Prasanta K. Panigrahi assumes the charge of Director, IISER Kolkata
Prof. Prasanta K. Panigrahi, Professor DPS has been assigned the charge of Director, IISER Kolkata w.e.f 12.10.2022. Congratulations Prasant.
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Posted on: October 13th, 2022
ICTP Associate
Dr. Koushik Dutta has become an Associate of Abdus Salam International Centre for Theoretical Physics, Trieste, Italy.Congratulations Prof. Koushik Dutta
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Posted on: September 7th, 2022
Rumi as a Women in STEM: Vanguards of lndia@75
We are extremely happy and delighted to share that Dr. Rumi De is a part of the group of 125 women chosen across the fields of science, technology, engineering, and mathematics - "Women in STEM: Vanguards of India@75" : http://anyflip.com/sruan/adwe/
As India celebrates 'Azadi ka Amrit Mahotsav' at lndia@75, to highlight the women achievers leading the way across STEM in order to encourage more women to come forward in the sector, Confederation of Indian Industry (CII) developed a comprehensive edition of a Compendium on "Women in STEM: Vanguards of lndia@75". The Compendium features the success stories and achievements of women luminaries, academicians, researchers, administrators, policymakers, business strategists, tech leaders, entrepreneurs, innovators, and others who have made a significant mark in the arena of Science, Technology, Engineering, and Mathematics.
Prof. Ajay Sood, Principal Scientific Adviser to the Government of India, released the Compendium at the Inaugural Session of the Women in STEM Summit on 22 July 2022.
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Posted on: July 25th, 2022
EXPERIMENTAL DEMONSTRATION OF SLOWING DOWN AND ENHANCEMENT OF FLUCTUATIONS IN AN ABRUPT MOTT TRANSITION
A team of researchers led by Prof. Rajesh Kumble Nayak and Prof. Bhavtosh Bansal from the Department of Physical Sciences (DPS) of Indian Institute of Science Education and Research (IISER) Kolkata, has been able to demostrate experimentally the slowing down and enhancement of fluctuations at an abrupt phase transition (APT) using thermally induced Mott transition.
The research which has been published in Physical Review Letters shows that the strong abrupt transition is controlled by a critical-like singularity in the hysteretic metastable phase.
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Posted on: March 16th, 2020