Publications - Superconducting Quantum Systems

Universal Jaynes-Cummings Control of an Oscillator, Jordan Huang, Ethan Kasaba, Thomas J. DiNapoli, Tanay Roy, Srivatsan Chakram, arXiv:2605.18658 (2026).
Universal monitored dynamics in multimode bosonic systems, Shivam Patel, Catherine McCarthy, Ahana Chakraborty, Jordan Huang, Thomas J. DiNapoli, Romain Vasseur, J. H. Pixley, Srivatsan Chakram, arXiv:2603.13125 (2026).
Fast Sideband Control of a Multimode Cavity Memory with Weak Dispersive Coupling to a Transmon, Jordan Huang, Thomas J. DiNapoli, Gavin Rockwood, Ming Yuan, Prathyankara Narasimhan, Eesh Gupta, Mustafa Bal, Francesco Crisa, Sabrina Garattoni, Yao Lu, Liang Jiang, Srivatsan Chakram, Phys. Rev. X 16, 011058 (2026).

Ultracoherent superconducting cavity-based multiqudit platform with error-resilient control, Taeyoon Kim, Tanay Roy, Xinyuan You, Andy C. Y. Li, Henry Lamm, et al., Srivatsan Chakram, Alexander Romanenko, Yao Lu, arXiv:2506.03286 (2025).
Floquet-Engineered Fast SNAP gates in weakly coupled cQED systems, Xinyuan You, Andy C. Y. Li, Tanay Roy, Shaojiang Zhu, Alexander Romanenko, Anna Grassellino, Yao Lu, Srivatsan Chakram, Phys. Rev. Applied 24, 034072 (2025).
A Cascaded Random Access Quantum Memory, Ziqian Li, Eesh Gupta, Fang Zhao, Riju Banerjee, Yao Lu, Tanay Roy, Andrew Oriani, Andrei Vrajitoarea, Srivatsan Chakram, David I. Schuster, arXiv:2503.13953 (2025) (accepted at Nature Physics).
Efficient quantum tomography of a polynomial subspace, Yat Wong, Ming Yuan, Kevin He, Srivatsan Chakram, Alireza Seif, David I. Schuster, Liang Jiang, arXiv:2503.00255 (2025).
Niobium coaxial cavities with internal quality factors exceeding 1.4 billion for circuit quantum electrodynamics, Andrew E. Oriani, Fang Zhao, Tanay Roy, Alexander Anferov, Kevin He, Ankur Agrawal, Riju Banerjee, Srivatsan Chakram, David I. Schuster, Phys. Rev. Applied 24, 044080 (2025).

Crosstalk-Robust Quantum Control in Multimode Bosonic Systems, Xinyuan You, Yunwei Lu, Taeyoon Kim, Doga Murat Kurkcuoglu, Shaojiang Zhu, David van Zanten, Tanay Roy, Yao Lu, Srivatsan Chakram, Anna Grassellino, Alexander Romanenko, Jens Koch, Silvia Zorzetti, Phys. Rev. Applied 22, 044072 (2024).
Efficient multimode Wigner tomography, Kevin He, Ming Yuan, Yat Wong, Srivatsan Chakram, Alireza Seif, Liang Jiang, David I. Schuster, Nature Communications 15, 4138 (2024).
Stimulated emission of signal photons from dark matter waves, Ankur Agrawal, Akash V. Dixit, Tanay Roy, Srivatsan Chakram, Kevin He, Ravi K. Naik, David I. Schuster, Aaron Chou, Phys. Rev. Lett. 132, 140801 (2024).

Suppression of quasiparticle poisoning in transmon qubits by gap engineering, Plamen Kamenov, Thomas DiNapoli, Michael Gershenson, Srivatsan Chakram, arXiv:2309.02655 (2023).
HetArch: Heterogeneous Microarchitectures for Superconducting Quantum Systems, Samuel Stein, Sara Sussman, Teague Tomesh, Charles Guinn, Esin Tureci, Sophia Fuhui Lin, Wei Tang, James Ang, Srivatsan Chakram, Ang Li, Margaret Martonosi, Fred T. Chong, Andrew A. Houck, Isaac L. Chuang, Michael Austin DeMarco, Proc. 56th IEEE/ACM International Symposium on Microarchitecture, 539–554 (2023).

Chiral Cavity Quantum Electrodynamics, John Clai Owens, Margaret G. Panetta, Brendan Saxberg, Gabrielle Roberts, Srivatsan Chakram, Ruichao Ma, Andrei Vrajitoarea, Jonathan Simon, David Schuster, Nature Physics 18, 1048–1052 (2022).
Multimode photon blockade, Srivatsan Chakram*, Kevin He*, Akash Dixit, Andrew Oriani, Ravi Naik, Nelson Leung, Hyeokshin Kwon, Wen-Long Ma, Liang Jiang, David Schuster, Nature Physics 18, 879–884 (2022).
Mode-Manipulated Multimode Cavity for Quantum Memory, Tae Hwan Jang, Jaehyeong Lee, Jaeho Shin, Jinhyoun Kang, Sungho Han, Insu Jeon, Srivatsan Chakram, David I. Schuster, Hyeokshin Kwon, IEEE Transactions on Quantum Engineering (2022).

Seamless high-Q cavities for multimode circuit quantum electrodynamics, Srivatsan Chakram*, Andrew Oriani*, Ravi Naik, Akash Dixit, Hyeokshin Kwon, David Schuster, Phys. Rev. Lett. 127, 107701 (2021).
Searching for dark matter with a superconducting qubit, Akash Dixit, Srivatsan Chakram, Kevin He, Ankur Agarwal, Ravi Naik, David I. Schuster, Aaron Chou, Phys. Rev. Lett. 126, 141302 (2021).
Universal fast flux control of a coherent, low-frequency qubit, Helin Zhang, Srivatsan Chakram, Tanay Roy, Nathan Earnest, Yao Lu, Ziwen Huang, Daniel Weiss, Jens Koch, David I. Schuster, Phys. Rev. X 11, 011010 (2021).

Two-dimensional material tunnel barrier for Josephson junctions and superconducting qubits, Kan-Heng Lee, Srivatsan Chakram, Shi En Kim, Fauzia Mujid, Ariana Ray, Hui Gao, Chibeom Park, Yu Zhong, David Muller, David Schuster, Jiwoong Park, Nano Letters 19, 8287–8293 (2019).
Deterministic bidirectional communication and remote entanglement generation between superconducting qubits, N. Leung, Y. Lu, S. Chakram, R. K. Naik, N. Earnest, R. Ma, K. Jacobs, A. N. Cleland, D. I. Schuster, npj Quantum Information 5, 18 (2019).

Realization of a Λ system with metastable states of a capacitively-shunted fluxonium, N. Earnest, S. Chakram, Y. Lu, N. Irons, R. K. Naik, N. Leung, J. Lawrence, Jens Koch, David I. Schuster, Phys. Rev. Lett. 120, 150504 (2018).
Universal stabilization of a parametrically coupled qubit, Y. Lu, S. Chakram, N. Leung, N. Earnest, R. K. Naik, Z. Huang, P. Groszkowski, E. Kapit, Jens Koch, D. I. Schuster, Phys. Rev. Lett. 119, 150502 (2018).

Random access quantum information processors using multimode circuit quantum electrodynamics, R. K. Naik*, N. Leung*, S. Chakram*, P. Groszkowski, Y. Lu, N. Earnest, D. C. McKay, Jens Koch, D. I. Schuster, Nature Communications 8, 1904 (2017).

Nonlinear Phonon Interferometry at the Heisenberg Limit, H. F. H. Cheung, Y. S. Patil, L. Chang, S. Chakram, M. Vengalattore, arXiv:1601.02324 (2016).

Multimode phononic correlations in a nondegenerate parametric amplifier, S. Chakram, Y. S. Patil, M. Vengalattore, New Journal of Physics 17 (2015).
Measurement-induced localization of an ultracold lattice gas, Y. S. Patil, S. Chakram, M. Vengalattore, Phys. Rev. Lett. 115, 140402 (2015).
Thermomechanical two-mode squeezing in an ultrahigh Q membrane resonator, Y. S. Patil, S. Chakram, L. Chang, M. Vengalattore, Phys. Rev. Lett. 115, 017202 (2015).

Nondestructive imaging of an ultracold lattice gas, Y. S. Patil, S. Chakram, L. M. Aycock, M. Vengalattore, Phys. Rev. A 90, 033422 (2014).
Dissipation in ultrahigh quality factor membrane resonators, S. Chakram, Y. S. Patil, L. Chang, M. Vengalattore, Phys. Rev. Lett. 112, 127201 (2014).

Gentile statistics and restricted partitions, Srivatsan C. S., M. V. N. Murthy, R. K. Bhaduri, Pramana – J. Phys. 66, 485–494 (2006).

Technologies for long-lived 3D multimode microwave cavities, D. Schuster, R. Naik, S. Chakram, US Patent 10,964,997 (2021).
Technologies for resource-efficient quantum error correction, D. Schuster, S. Chakram, US Patent App. 19/014,953 (2025).