• Dr. R. Vijayaraghavan

    Principal Investigator

    Img Vijay completed his Bachelors degree in Physics from St. Stephen's College, Delhi University in 1999. He spent two more years at the University of Cambridge before starting a PhD at Yale University in 2001. After his postdoctoral work at University of California, Berkeley, Vijay returned to India and joined TIFR to start a new laboratory. He currently heads the Quantum Measurement and Control Laboratory where the main goal is to develop techniques to stabilize quantum states against decoherence. During his spare time, Vijay likes to play his guitar, watch movies and travel.

  • Meghan Patankar

    Scientific Officer

    Img Meghan did his graduation from Birla college, Kalyan in 1998. In 1999, he joined TIFR, as a Scientific staff, in the then Organics Electronics group under the guidance of Prof. K. L. Narasimhan. During this period he contributed towards development of AlQ3 based and carbazole - derivatives based OLEDs and photodetectors. He also did a brief study of Dopant diffusion in Organic semiconductors. 2013 onward he joined Dr. Vijayaraghavan in QuMac lab and is slowly entering into the quantum regime. In the classical world, he is fond of variety of adventure sports and when not in Institute, he's more probably found on some mountain. Personal page>>

  • Dr. Madhavi Chand

    Research Associate

    Img Madhavi did her schooling from Sardar Patel Vidyalaya and BSc in Physics from St. Stephen's College, Delhi. During her masters at Brown University, Providence she worked with Prof. Humphrey Maris on heat transport in semiconductor superlattices. She then taught Physics at St. Stephen's College and subsequently joined the PhD programme at TIFR, Mumbai where she worked on magneto-transport and tunneling studies on disordered superconductors under the guidance of Prof. Pratap Raychaudhuri. She was then a postdoctoral fellow in the QuMaC group for worked on projects related to multi-modal quantum circuits with a strong focus on device fabrication. After a break for one year, she has now returned to the QuMaC group as a Research Associate to work on the new DST funded project called QuEST. Apart from physics, she has a keen interest in pottery and cooking. Personal page>>

  • Sumeru Hazra

    PhD student

    Img Sumeru is from Kolkata. He graduated with a Bachelor's degree in physics from Jadavpur University. and joined TIFR in 2014 for the integrated PhD program. He is currently working in the Quantum Measurement and Control Laboratory under the guidance of Dr. R Vijayaraghavan. Painting, sketching portraits, caricatures, digital arts, theatre and football are some of his other interests. Personal page>>

  • Kishor Salunkhe

    PhD student

    Img Kishor is from Satara, Maharastra. He graduated with a Bachelor’s and Master’s degree in Physics from Chennai Mathematical Institute and joined TIFR in August 2016. He is working in the Quantum Measurement and Control laboratory since July 2017 under the guidance of Dr. Vijayaraghavan. Football, cricket, poetry, and theatre are some of his hobbies. Personal page>>

  • Anirban Bhattacharjee

    PhD student

    Img Anirban received his Bachelor’s degree in Physics from Presidency University, Kolkata. He joined TIFR under the integrated PhD program in 2016. He started working in QuMaC Lab, a year later. Under the guidance of Dr. R. Vijay, he is currently developing a modular 2D architecture in circuit QED. During his spare time, Anirban likes to watch movies, TV series and football matches. Playing football and monsoon trekking are some of the other interests he has developed after joining TIFR. Personal page>>

  • Gaurav Bothara

    PhD student

    Img Gaurav completed his Integrated Masters degree from Indian Institute of Technology, Roorkee in 2017. Then he joined TIFR, Mumbai in DCMPMS for the PhD program in August,2017. He plays badminton and likes to watch movies. Personal page>>

  • Srijita Das

    PhD student

    Img Srijita studied at G.D. Birla Centre for Education, Kolkata and completed Bachelor's in Physics from Jadavpur University. After graduation, she joined TIFR as an Integrated-PhD. student in 2018 and is currently working on fabrication of Tantalum qubits and resonators in QuMaC lab. During her leisure time, she enjoys drawing and painting.

  • Jay Deshmukh

    PhD student

    Img Jay completed his BS-MS degree in Physics from IIT Kanpur and joined the PhD program at TIFR in 2019. He is currently working in the Quantum Measurement and Control Laboratory, primarily on setting up control protocols for multi-qubit systems. His research interests include quantum control theory, quantum information theory and quantum simulations. Apart from physics, Jay holds a keen interest in music and football.

  • Gaurav Agarwal

    Project student

    Img Gaurav is pursuing an Integrated Masters's degree in Physics at UM-DAE-CBS, Mumbai. He joined QuMac lab for his Master's thesis which involves controlling and measuring multi-qubit systems using FPGA based modules. Academically he is inclined towards condensed matter physics and information science. Besides physics, you can talk to him about his music choices, indie movies and all things tech.

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  • Gautham Umasankar

    Project student

    Img Gautham joined the QuMaC lab in 2021 as part of his Master's Thesis project. He completed a dual degree in Quantum Science and Electrical Engineering from IIT Madras. During his time at QuMaC he worked on simulating cross resonance gates and optimizing gate fidelity transmon qubit networks. His interests are in quantum error correction, quantum simulation, and quantum optics. He also loves playing the violin and the piano. He will pursue his Ph.D. at Yale University starting Sep 2022.

  • Nicolas Gheeraert

    Postdoctoral Fellow

    Img Nicolas (नीकोला) began his PhD in theoretical phsyics on the topic of ultra-strong light-matter coupling in circuit QED, and then moved to the QuMaC group as a Raman Charpak Fellow to work on an experimental project. After finish his PhD, he spent one year as a postdoctoral scholar at the University of Tokyo, RCAST before joining QuMaC to continue his postdoctoral research in experimental physics. Chess, football, hiking, hindi are a few of his hobbies.

    Nicolas is currently at IIT Madras as visiting faculty.

  • Suman Kundu

    PhD student

    Img Suman received his B.Sc. in Physics in 2011 from Ramakrishna Mission Vidyamandira, Belur affiliated under University of Calcutta, Kolkata. He completed his Masters in physics at Indian Institute of Technology, Bombay in 2013. Then he joined Tata Institute of Fundamental Research, Mumbai in DCMPMS as a graduate student in July, 2013

    Suman is currently a postdoctoral researcher at Aalto University, Finland. Personal page>>

  • Aniruddha Deshpande

    Project student

    Img Aniruddha is currently pursuing a BS-MS dual degree Masters Program at IISER Pune. He joined QuMaC lab as a Masters Student to work on a year long thesis project. At TIFR he's working on detection of microwave photons using superconducting circuits. Trekking, cooking and sketching are some of his interests.

  • Sanskriti Chitransh

    Project student

    Img Sanskriti graduated from BITS Pilani in July 2019 with an integrated Masters degree in Physics. As project student at the QuMAC lab, she worked on coupling multiple superconducting qubits by applying principles analogous to those used for ion crystals in ion-trapping experiments. Outside of the lab, she is usually found reading, writing or sketching.

  • Anwesha Panda

    Summer project student (VSRP)

    Img Anwesha is an undergraduate student at IISER Kolkata. She joined QuMAC in the summer of 2019 as a VSRP project. She worked on understanding and controlling the ageing of Josephson junctions to enable reliable fabrication of qubit devices.

  • Prerna Baranwal

    Summer project student

    Img Prerna is double majoring in Mathematics and Electronics & Instrumentation at BITS Pilani, Pilani Campus. She joined QuMAC lab at the end of her 3rd year, as a project student and worked on designing a closed loop quantum feedback control system. Her other research interests include developing navigation and control algorithms for satellites. In her free time she likes to create animations, travel, play badminton and read books.

  • Sriram Gopalakrisnan

    Visiting summer student

    Img Sriram is pursuing a B.Tech. degree in Engineering Physics at Indian Institute of Technology Madras, Chennai. He joined QuMaC in May 2019 as a participant of the Visiting Student Research Programme at TIFR. He worked on optimizing the design of a new bus cavity architecture, which is a promising candidate for coupling multiple superconducting qubits. The work entails RF simulations in COMSOL Multiphysics and AWR Microwave Office. His academic interests are in the fields of Quantum Information, Solid State Physics and Mathematical Optimization. In his spare time, he enjoys playing Football, Table Tennis, and watching movies.

  • Tanay Roy

    PhD student

    (currently a postdoctoral scholar at the University of Chicago)

    Img Tanay is from Siliguri, a beautiful city on the foothills of the Himalayas. He received his graduate degree in Physics from Jadavpur University, Kolkata in 2011. Then he joined Tata Institute of Fundamental Research, Mumbai as an Integrated PhD. student in the department of Condensed Matter Physics and Materials Science. Being the first PhD student of QuMaC lab, he was greatly involved in the lab setup. His PhD work led to the development of multi-mode quantum circuits and broadband parametric amplifiers using impedance engineering. He is currently a postdoctoral scholar at the University of Chicago in the Schuster Group. Personal page>>

  • Ameya Riswadkar

    Project student

    (currently a PhD student at the University of Wisconsin-Madison, USA)

    Img Ameya is currently in the final year of his dual degree program at BITS Pilani, K. K. Birla Goa Campus. At QuMaC, he is working on coupling superconducting microwave resonators with graphene based nano-mechanical oscillators as part of his undergraduate thesis. He also worked on developing a 4-qubit chip in 2D architecture. He is currently a PhD student at the University of Texas at Austin, USA.

  • Vidul Joshi

    Masters thesis student

    (currently a PhD student at Yale University)

    Img Vidul is an undergraduate physics student at IIT Kanpur since 2013. He joined QuMAC lab in the summer of 2016 through TIFR's visiting student program. His work primarily involved designing and fabricating lossy filters for microwave transmission lines. He hopes to pursue his interest in quantum computing further through higher studies. He rejoined QuMaC in summer of 2017 to work on his Masters thesis where he worked developing broadband amplifiers using the Josephson Parametric Converter. He also indulges himself in amateur astronomy and loves to play chess.

  • Samikshya Sahu

    Visiting summer student

    Img Samikshya is currently a third year student from IISER Bhopal pursuing her BS-MS Dual Degree. She had completed her schooling from Delhi Public School ,Ranchi. She was a VSRP student for summer 2017 and worked on improving the design and bandwidth of a Josephson Parametric Amplifier which is used for quantum measurements.

  • Dr. U Chandni

    Jawaharlal Nehru Visiting Postdoctoral Scientist (currently Assistant Professor in Department of Instrumentation and Applied Physics, IISc, Bangalore)

    Img Chandni was a Jawaharlal Nehru Visiting Postdoctoral Scientist at QuMaC from June 1 - Nov 30, 2016. She primarily worked on setting up an optomechanical system based on a graphene membrane resonator coupled to a superconducting microwave cavity. Personal page>>

  • Malay Singh

    Project student

    (currently working as a Design Engineer in the Metrology division of ASML)

    Img Malay did his undergraduate thesis at the QuMaC Lab during spring 2016, while he was a student at BITS, Pilani. He studied weak value protocols and their implementations using Superconducting Quantum Circuits. In his spare time he likes reading-mostly politics and history.

  • Arpit Ranadive

    Masters student

    (currently a PhD student at Neel Institute, Grenoble

    Img Arpit did his Masters project where he explored loss mechanisms in superconducting qubits and ways to improve them. He also worked on programming the FPGA module for generating arbitrary waveforms and quantum feedback control

  • Naveen Nehra

    Junior Research Fellow

    (currently a PhD student at Univ. of Wisconson-Madison)

    Img Naveen worked on developing microwave structures for improving bandwidth of parametric amplifiers for his undergraduate project. He continued as a Junior Research Fellow and worked on several projects including electromagnetic simulations of superconducting microwave structures for understanding loss mechanisms and understanding the Hamiltonian of multi-mode qubit circuits

  • Nitish Mehta

    Junior Research Fellow

    (currently a PhD student at University of Maryland, College Park, USA)

    Img Nitish graduated from BITS Pilani with double majors in Physics and Electrical Engineering. He used to explore oilfields for a major oil and gas giant before realising he was a science and technology geek at heart. At QuMaC, he worked on building weak continuos measurement protocols for stabilising a quantum state. A passionate swimmer, he captained his university and high school swimming teams.

  • Cosmic Raj

    Junior Research Fellow

    (currently a PhD student at University of Tokyo, Japan)

    Img Cosmic worked on simulations for a quantum optics experiments on a single transmon qubit in a 3D Dual microwave cavity. He was also involved in developing the 3D circuit Q.E.D architecture required for realizing multi-qubit experiments. Before joining our group in November 2013, he received his Master's (M.Sc) in Physics from Indian Institute of Technology Madras.

  • Shiva Teja

    Project student (currently a Masters student at University of Minnesota, Duluth)

    Img Shiva received his Bachelor of Technology degree in Pulp and Paper Engineering from IIT Roorkee in 2014. To pursue his love for Physics, he started working here as a project student and is currently trying to understand the different modes of a four Josephson ring. In his free time he enjoys travelling and solving puzzles.

  • A M Vadiraj

    Junior Research Fellow

    (currently a PhD student at IQC, University of Waterloo, Canada)

    Img Vadiraj joined the QuMaC lab soon after graduating from Delft University of Technology, Netherlands with a masters degree in electrical engineering. He obtained his bachelors in electrical engineering from Visvesvaraya Technological University, Karnataka. His research interests lies in hybrid quantum devices, electromechanics, design and fabrication of microwave circuits for quantum information processing. At QuMaC lab, he focusses on studying the behaiour of mechanical resonators coupled to a Josephson Parametric Amplifier (JPA). He also works on developing and improving the fabrication processes of superconducting qubits and parametric amplifiers. When not in the lab, he likes to spend time on music, travel and fitness.

    Personal page>>
  • Subhradeep Mishra

    VSRP student

    (currently a PhD student at the Weizmann Institute, Israel)

    Img Subhradeep was a visiting summer student. His project was to use a shot noise source to characterize the noise of cryogenic amplification chains.

  • Sukant Kumar

    VSRP student

    Img Sukant was a visiting summer student. His project involved designing impedance transformers for modiying the bandwidth of parametric amplifiers.

  • Namrata Mazumdar

    Summer project student

    ImgNamrata's project involved developing protocols for calibration of cryogenic microwave measurement lines.

  • Soorya Suresh Babu

    Project student

    (currently a PhD student at University of Illinois, Urbana-Champagne, USA)

    Soorya worked on designing lossy microwave filters and microwave circuit boards

  • Vijeth Krishna

    Project student

    Img Vijeth did his undergraduate thesis project in our group. His project was on designing, fabricating and measuring parametric amplifiers.

  • Rahul Deshpande

    Summer project student

    (currently a PhD student at IQC, University of Waterloo, Canada)