I am an Institute for Quantum Information and Matter (IQIM) postdoctoral scholar in Oskar Painter’s group at Caltech. I received my PhD from Harvard where I worked in Marko Loncar’s group.
I perform experimental research on a broad variety of solid-state quantum platforms including superconducting circuits, defect center spins, and nanoscale optical and acoustic devices. I am interested in connecting quantum particles coherently across these very different systems. My work aims to develop new tools and techniques to build large-scale quantum systems for computation, communication and sensing.
You can reach me by email at srujan[at]caltech[dot]edu.
News
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3/6/2024 I will be giving a talk at the APS March Meeting in Minneapolis [link].
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2/29/2024 I am visiting Boston University and giving a seminar.
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2/23/2024 Our work on the non-classical microwave-optical photon-pair source is now published in Nature Physics! [link]
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2/20/2024 I will be visiting Rice University and giving a seminar.
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1/31/2024 I will be visiting JILA and giving a colloquium titled ‘Generating quantum correlations between light and microwaves with a chip-scale device’.
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12/22/2023 My last paper of this year reports generation of entangled states of photons of light and photons in an electrical circuit. This is the first observation of microwave-optical Bell pairs. Preprint titled ‘Quantum entanglement between optical and microwave photonic qubits’ is now up on the arXiV!
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12/04/2023 New preprint titled ‘In-situ tuning of optomechanical crystals with nano-oxidation’ up on the arXiV.
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11/17/2023 I am giving the ECE Quantum Seminar at the University of Southern California (USC).
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11/14/2023 I have been awarded the Boeing Quantum Creator’s Prize and will be giving a talk at the Chicago Quantum Summit. Many thanks to the Chicago Quantum Exchange and Boeing for this recognition!
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10/30/2023 New preprint titled ‘High Q-factor diamond optomechanical resonators with silicon vacancy centers at millikelvin temperatures’ up on the arXiV. These are the first measurements of microwave frequency diamond nanomechanical devices at mK temperatures.
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07/25/2023 I am giving an invited seminar in Marko Loncar’s group at Harvard. Excited to visit my old home :).
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07/19/2023 I am presenting at the AWS Quantum Networks (QuNeW) Workshop in Beverly MA.
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07/07/2023 Our paper titled ‘Design of an ultra-low mode volume piezo-optomechanical quantum transducer’ is now out in Optics Express. This work presents a new design approach for low-noise microwave-optical quantum transducers.
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06/29/2023 I am giving an invited seminar in Alp Sipahigil’s group at UC Berkeley.
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03/30/2023 New preprint titled ‘Non-classical microwave-optical photon pair generation with a chip-scale transducer’ up on the arXiV. We made the first microwave-optical photon-pair source and observed quantum correlations between light and an electrical circuit. Super excited to put this work out!
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03/27/2023 I am giving an invited talk on my recent work on microwave-optical quantum transducers at the AWS Center for Quantum Networks.
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03/10/2023 I am giving a talk at the APS March Meeting titled ‘Microwave-optical photon correlations in a piezo-optomechanical transducer’.