Ayana Sarkar

Enthusiastic, highly motivated researcher with keen interest and experience in several fields of quantum physics, especially quantum chaos, many-body physics, quantum information, quantum machine learning and random matrix theory. Since May-2023 worked actively in multiple collaborative projects involving aspects of quantum computation, many-body quantum chaos, quantum information and quantum machine learning.

• M.Sc Orientation Programme, Inter University Accelerator Centre (IUAC-New Delhi), Dr. K. S. Golda, 12/2016, 01/2017, Detection of alpha particles using Silicon PIN diode detectors
• Summer Research Project, Variable Energy Cyclotron Centre (VECC - Kolkata), Prof. D. N. Basu, 05/2015, 07/2015, Structure of Compact stars
• Mandatory 1year project for JBNSTS, Saha Institute of Nuclear Physics (SINP-Kolkata), Dr. M. S. Janaki and Dr. A. N. Sekar Iyengar, 01/2013, 11/2013, Experimental characterisation of Plasmas

• Bures-Hall ensemble: spectral densities and average entropies, A. Sarkar and S. Kumar J. Phys. A: Math. Theor. 52, 295203 (2019).
• Distribution of the ratio of two consecutive level spacings in orthogonal to unitary crossover ensembles, A. Sarkar, M. Kothiyal and S. Kumar, Phys. Rev. E 101, 012216 (2020).
• Generation of random Bures mixed states using coupled kicked tops, A. Sarkar and S. Kumar, Phys. Rev. A 103, 032423 (2021).
• Entanglement spectrum statistics of a time reversal invariant spin chain system: insights from random matrix theory, A. Sarkar and S. Kumar, Eur. Phys. J. B 96, 120 (2023).
• Multifractal dimensions in the orthogonal to unitary crossover ensemble, A. Sarkar, A. Dheer and S. Kumar, Chaos 34, 033121 (2024), arxiv: 2310.03526.
• Spectral crossover in non-hermitian spin chain systems: comparison with random matrix theory, A. Sarkar, S. Sen and S. Kumar, Phys. Rev. E 108, 054210 (2023).
• Fermionic Machine Learning, J. Gince, J-M Pagé, M. Armenta, A. Sarkar, S. Kourtis, arXiv:2404.19032 (2024) (Under Review).
• Spectral Crossovers within the Ginibre ensembles, A. Sarkar, D. Kundu and M. Kulkarni (Manuscript in preparation).
• Entanglement spectrum crossover in a correlated spin chain model, A. Sarkar and S. Kumar (Manuscript in preparation).

Shiv Nadar Institution of Eminence (Deemed to be university), Teaching Assistant for (6 Semesters): 

PHY 205- Waves & oscillations

PHY 306- Quantum Mechanics II 

PHY 308- Advanced Experimental Physics - II (for two semesters) 

PHY 303- Classical Electrodynamics (for two semesters) 

PHY 102- Introduction to Physics

• Swimming
• Cycling
• Badminton
• Music
• Reading and Creative Writing

• Selected for Poster presentation ("Fermionic Machine Learning") at the Physics of Quantum Information-2024(27th-31st May) at the Perimeter Institute.
• Contributed Oral presentation "GinOE-GinUE crossover in a disordered non-Hermitian spin chains" at Theory Canada-16, Institute of Quantum Computing at University of Waterloo (24th-25th May, 2024), abstract available at https://indico.cern.ch/event/1396918/.
• Invited as a speaker at the Introduction to Quantum Computing with QISKIT ( IQCQ)-2024 by the Center of Excellence in Quantum Technologies at the University of Petroleum and Energy Studies (UPES), Dehradun, India.
• Got selected, participated and presented a poster ("Entanglem") at the Phyics of Quantum Information-2024 at the Perimeter Institute. the 3rd Condensed Matter Summer School on "Dynamics and Quantum Information in Many-body Systems" held from June 12-21, 2023, at University of Minnesota, Twin cities (UMN-TC) campus.
• Got selected for and participated in the ICTS-TIFR, Bangalore, Statistical Physics of Complex systems (SPCS-2022) community meeting.
• Selected and invited for the summer school on "Randomness in Physics and Mathematics: From Integrable Probability to Disordered Systems", Center for Interdisciplinary Research (ZiF), University of Bielefeld, Bielefeld, Germany, 1-14th August, 2022, unable to participate due to Visa problem.
• Conference on Nonlinear Systems and Dynamics (CNSD), SASTRA Deemed university, Thanjavur (ONLINE), 17-22nd Dec, 2021, Oral Presentation, Best Oral Presentation award (awarded to 6 participants) talk titled, "Characterizing entanglement spectra of a XXZ spin chain with random matrix theory".
• XVI Brunel-Bielefeld Workshop on RMT from 18-19th Dec 2020, Poster presentation, "Random Matrix theory based study of spin chains".
• Selected for Flash oral (2mins) + poster presentation on the "Distribution of the ratio of two consecutive level spacings in the orthogonal to unitary crossover ensemble" at the Complex dynamical systems and applications (CDSA) 2020, 21-23rd Feb, at the Central University of Rajasthan, Ajmer, India.
• Conference on Nonlinear Systems and Dynamics (CNSD) 2019 at IIT Kanpur, 12-15th Dec, 2019, Oral Presentation, Best Oral Presentation award (awarded to 3 participants) for the talk titled, "Generation of random Bures states via coupled kicked tops".
• Quantum Fundamentals Technology and Applications (QFTA, 2019) at IISER Mohali, 17-21st October 2019.
• Selected for the DST-SERB school on Nonlinear dynamics held at Guru Nanak Dev University, Amritsar, 2018.
• Presented Poster titled, "Bures-Hall ensemble: spectral densities and average entropies". at the CNSD (Conference on Nonlinear systems and Dynamics), 2018 held at Jawaharlal Nehru University (JNU), Delhi.
• Got selected by VECC in essay writing competition on the topic "Nucleus for the Nation". Invited along with other candidates from all over India to defend the essay at VECC, Kolkata. Prize: fully funded tour of the NAPS (Narora Atomic Power Station, UP) (March, 2016) by NPCIL (Nuclear Power Corporation of India Limited).