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Cameron Kopas

rigetti computing

12H-index
65Paper Count
482Citation Count
Published Papers 23
Publication Date
Oxygen Distribution and Segregation at Grain Boundaries in Nb and Ta-Encapsulated Nb Thin Films for Superconducting Qubits
err2026-04-29
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PREAI
errJaeyel Lee; Dieter Isheim; Zuhawn Sung; Francesco Crisa; Sabrina Garattoni; Mustafa Bal; Cameron J. Kopas; Josh Y. Mutus; Hilal Cansizoglu; Jayss Marshall; Kameshwar Yadavalli; Dominic P. Goronzy; Mark C. Hersam; David N. Seidman; Alexander Romanenko; Anna Grassellino; Akshay A. Murthy
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Probing Non-Equilibrium Pair-Breaking and Quasiparticle Dynamics in Nb Superconducting Resonators Under Magnetic Fields
err2025-01-27
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errOAAI
errPark, Joong-Mok; Chong, Zhi Xiang; Kim, Richard H. J.; Haeuser, Samuel; Chan, Randy; Murthy, Akshay A.; Kopas, Cameron J.; Marshall, Jayss; Setiawan, Daniel; Lachman, Ella; Mutus, Joshua Y.; Yadavalli, Kameshwar; Grassellino, Anna; Romanenko, Alex; Wang, Jigang
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Correlating aluminum layer deposition rates, Josephson junction microstructure, and superconducting qubits' performance
err2025-01-01
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errOAAI
errOh, Jin-Su; Kopas, Cameron J.; Cansizoglu, Hilal; Mutus, Joshua Y.; Yadavalli, Kameshwar; Kim, Tae-Hoon; Kramer, Matt; King, Alexander H.; Zhou, Lin
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Transport signatures of phase fluctuations in superconducting qubits
err2024-12-13
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errOAAI
errWisne, M.; Deng, Y.; Cansizoglu, H.; Kopas, C.; Mutus, J. Y.; Chandrasekhar, V
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Quasiparticle spectroscopy in technologically relevant niobium using London penetration depth measurements: experiment and theory
err2024-11-06
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errOAAI
errGhimire, Sunil; Joshi, Kamal R.; Datta, Amlan; Goerdt, Aidan; Tanatar, Makariy A.; Schlagel, Deborah; Kramer, Matthew J.; Marshall, Jayss; Kopas, Cameron J.; Mutus, Joshua Y.; Romanenko, Alexander; Grassellino, Anna; Prozorov, Ruslan
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Enhanced superconducting qubit performance through ammonium fluoride etch
err2024-11-05
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errOAAI
errKopas, Cameron J.; Goronzy, Dominic P.; Pham, Thang; Castanedo, Carlos G. Torres; Cheng, Matthew; Cochrane, Rory; Nast, Patrick; Lachman, Ella; Zhelev, Nikolay Z.; Vallieres, Andre; Murthy, Akshay A.; Oh, Jin-su; Zhou, Lin; Kramer, Matthew J.; Cansizoglu, Hilal; Bedzyk, Michael J.; Dravid, Vinayak P.; Romanenko, Alexander; Grassellino, Anna; Mutus, Josh Y.; Hersam, Mark C.; Yadavalli, Kameshwar
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Exploring the relationship between deposition method, microstructure, and performance of Nb/Si-based superconducting coplanar waveguide resonators
err2024-09-01
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errOAAI
errOh, Jin-Su; Kopas, Cameron J.; Marshall, Jayss; Fang, Xiaotian; Joshi, Kamal R.; Datta, Amlan; Ghimire, Sunil; Park, Joong-Mok; Kim, Richard; Setiawan, Daniel; Lachman, Ella; Mutus, Joshua Y.; Murthy, Akshay A.; Grassellino, Anna; Romanenko, Alex; Zasadzinski, John; Wang, Jigang; Prozorov, Ruslan; Yadavalli, Kameshwar; Kramer, Matt; Zhou, Lin
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Alternating-bias assisted annealing of amorphous oxide tunnel junctions
err2024-08-12
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errOAAI
errPappas, David P.; Field, Mark; Kopas, Cameron J.; Howard, Joel A.; Wang, Xiqiao; Lachman, Ella; Oh, Jinsu; Zhou, Lin; Gold, Alysson; Stiehl, Gregory M.; Yadavalli, Kameshwar; Sete, Eyob A.; Bestwick, Andrew; Kramer, Matthew J.; Mutus, Josh Y.
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Structure and Formation Mechanisms in Tantalum and Niobium Oxides in Superconducting Quantum Circuits
err2024-07-21
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errOAAI
errOh, Jin-Su; Zaman, Rahim; Murthy, Akshay A.; Bal, Mustafa; Crisa, Francesco; Zhu, Shaojiang; Torres-Castendo, Carlos G.; Kopas, Cameron J.; Mutus, Joshua Y.; Jing, Dapeng; Zasadzinski, John; Grassellino, Anna; Romanenko, Alex; Hersam, Mark C.; Bedzyk, Michael J.; Kramer, Matt; Zhou, Bi-Cheng; Zhou, Lin
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Systematic improvements in transmon qubit coherence enabled by niobium surface encapsulation
err2024-04-26
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errOAAI
errBal, Mustafa; Murthy, Akshay A.; Zhu, Shaojiang; Crisa, Francesco; You, Xinyuan; Huang, Ziwen; Roy, Tanay; Lee, Jaeyel; Zanten, David van; Pilipenko, Roman; Nekrashevich, Ivan; Lunin, Andrei; Bafia, Daniel; Krasnikova, Yulia; Kopas, Cameron J.; Lachman, Ella O.; Miller, Duncan; Mutus, Josh Y.; Reagor, Matthew J.; Cansizoglu, Hilal; Marshall, Jayss; Pappas, David P.; Vu, Kim; Yadavalli, Kameshwar; Oh, Jin-Su; Zhou, Lin; Kramer, Matthew J.; Lecocq, Florent; Goronzy, Dominic P.; Torres-Castanedo, Carlos G.; Pritchard, P. Graham; Dravid, Vinayak P.; Rondinelli, James M.; Bedzyk, Michael J.; Hersam, Mark C.; Zasadzinski, John; Koch, Jens; Sauls, James A.; Romanenko, Alexander; Grassellino, Anna
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Formation and Microwave Losses of Hydrides in Superconducting Niobium Thin Films Resulting from Fluoride Chemical Processing
err2024-04-10
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errOAAI
errTorres-Castanedo, Carlos G.; Goronzy, Dominic P.; Pham, Thang; McFadden, Anthony; Materise, Nicholas; Das, Paul Masih; Cheng, Matthew; Lebedev, Dmitry; Ribet, Stephanie M.; Walker, Mitchell J.; Garcia-Wetten, David A.; Kopas, Cameron J.; Marshall, Jayss; Lachman, Ella; Zhelev, Nikolay; Sauls, James A.; Mutus, Joshua Y.; McRae, Corey Rae H.; Dravid, Vinayak P.; Bedzyk, Michael J.; Hersam, Mark C.
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Quasiparticle Spectroscopy, Transport, and Magnetic Properties of Nb Films Used in Superconducting Qubits
err2023-08-11
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errOAAI
errJoshi, Kamal R.; Ghimire, Sunil; Tanatar, Makariy A.; Datta, Amlan; Oh, Jin-Su; Zhou, Lin; Kopas, Cameron J.; Marshall, Jayss; Mutus, Josh Y.; Slaughter, Julie; Kramer, Matthew J.; Sauls, James A.; Prozorov, Ruslan
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In-situ transmission electron microscopy investigation on surface oxides thermal stability of niobium
err2023-08-01
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errOAAI
errOh, Jin-Su; Fang, Xiaotian; Kim, Tae-Hoon; Lynn, Matt; Kramer, Matt; Zarea, Mehdi; Sauls, James A.; Romanenko, Alexander; Posen, Sam; Grassellino, Anna; Kopas, Cameron J.; Field, Mark; Marshall, Jayss; Cansizoglu, Hilal; Yadavalli, Kameshwar; Mutus, Joshua Y.; Reagor, Matthew; Zhou, Lin
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Visualizing heterogeneous dipole fields by terahertz light coupling in individual nano-junctions
err2023-06-22
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errOAAI
errKim, Richard H. J.; Park, Joong M.; Haeuser, Samuel; Huang, Chuankun; Cheng, Di; Koschny, Thomas; Oh, Jinsu; Kopas, Cameron; Cansizoglu, Hilal; Yadavalli, Kameshwar; Mutus, Josh; Zhou, Lin; Luo, Liang; Kramer, Matthew J.; Wang, Jigang
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Scanning tunneling microscopy and spectroscopy characterization of Nb films for quantum applications
err2023-05-09
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errOAAI
errBerti, G.; Torres-Castanedo, C. G.; Goronzy, D. P.; Bedzyk, M. J.; Hersam, M. C.; Kopas, C.; Marshall, J.; Iavarone, M.
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Disentangling the sources of ionizing radiation in superconducting qubits
err2023-01-31
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errOAAI
errCardani, L.; Colantoni, I.; Cruciani, A.; De Dominicis, F.; D'Imperio, G.; Laubenstein, M.; Mariani, A.; Pagnanini, L.; Pirro, S.; Tomei, C.; Casali, N.; Ferroni, F.; Frolov, D.; Gironi, L.; Grassellino, A.; Junker, M.; Kopas, C.; Lachman, E.; McRae, C. R. H.; Mutus, J.; Nastasi, M.; Pappas, D. P.; Pilipenko, R.; Sisti, M.; Pettinacci, V.; Romanenko, A.; Van Zanten, D.; Vignati, M.; Withrow, J. D.; Zhelev, N. Z.
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Anisotropic superconductivity of niobium based on its response to nonmagnetic disorder
err2022-12-14
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errOAAI
errTanatar, Makariy A.; Torsello, Daniele; Joshi, Kamal R.; Ghimire, Sunil; Kopas, Cameron J.; Marshall, Jayss; Mutus, Josh Y.; Ghigo, Gianluca; Zarea, Mehdi; Sauls, James A.; Prozorov, Ruslan
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Characterization of Nb films for superconducting qubits using phase boundary measurements
err2022-11-14
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errOAAI
errRyan, Kevin M.; Torres-Castanedo, Carlos G.; Goronzy, Dominic P.; Wetten, David A. Garcia; Field, Mark; Kopas, Cameron J.; Marshall, Jayss; Reagor, Matthew J.; Bedzyk, Michael J.; Hersam, Mark C.; Chandrasekhar, Venkat
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Contactless excitation of acoustic resonance in insulating wafers
err2022-10-04
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errOAAI
errZhai, Gan; Xin, Yizhou; Kopas, Cameron J.; Lachman, Ella; Field, Mark; Mutus, Josh Y.; Cicak, Katarina; Aumentado, Jose; Sung, Zuhawn; Halperin, W. P.
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Developing a Chemical and Structural Understanding of the Surface Oxide in a Niobium Superconducting Qubit
err2022-09-26
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errOAAI
errMurthy, Akshay A.; Das, Paul Masih; Ribet, Stephanie M.; Kopas, Cameron; Lee, Jaeyel; Reagor, Matthew J.; Zhou, Lin; Kramer, Matthew J.; Hersam, Mark C.; Checchin, Mattia; Grassellino, Anna; dos Reis, Roberto; Dravid, Vinayak P.; Romanenko, Alexander
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