Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Philip Krantz"'
Autor:
Youngkyu Sung, Antti Vepsäläinen, Jochen Braumüller, Fei Yan, Joel I-Jan Wang, Morten Kjaergaard, Roni Winik, Philip Krantz, Andreas Bengtsson, Alexander J. Melville, Bethany M. Niedzielski, Mollie E. Schwartz, David K. Kim, Jonilyn L. Yoder, Terry P. Orlando, Simon Gustavsson, William D. Oliver
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Engineering qubits with long coherence times requires the ability to distinguish multiple noise sources, which is not possible with typical two-level qubit sensors. Here the authors utilize the multiple level transitions of a superconducting qubit to
Externí odkaz:
https://doaj.org/article/fb0badbcc1874995abff41633cca96e1
Autor:
Yong Lu, Andreas Bengtsson, Jonathan J. Burnett, Emely Wiegand, Baladitya Suri, Philip Krantz, Anita Fadavi Roudsari, Anton Frisk Kockum, Simone Gasparinetti, Göran Johansson, Per Delsing
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-9 (2021)
Abstract We experimentally investigate a superconducting qubit coupled to the end of an open transmission line, in a regime where the qubit decay rates to the transmission line and to its own environment are comparable. We perform measurements of coh
Externí odkaz:
https://doaj.org/article/e1515629cfdc4b57ae3ac2644563f262
Autor:
Philip Krantz, Andreas Bengtsson, Michaël Simoen, Simon Gustavsson, Vitaly Shumeiko, W. D. Oliver, C. M. Wilson, Per Delsing, Jonas Bylander
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Efficient qubit readout is essential for quantum information technology, which requires sufficient recognition of signal from noise. Here, Krantz et al. propose a simplified technique using a Josephson parametric oscillator, demonstrating single-shot
Externí odkaz:
https://doaj.org/article/8e5a3871082441d98289725effadac59
Autor:
Philip Krantz, Yarema Reshitnyk, Waltraut Wustmann, Jonas Bylander, Simon Gustavsson, William D Oliver, Timothy Duty, Vitaly Shumeiko, Per Delsing
Publikováno v:
New Journal of Physics, Vol 15, Iss 10, p 105002 (2013)
We experimentally study the behavior of a parametrically pumped nonlinear oscillator, which is based on a superconducting λ /4 resonator, and is terminated by a flux-tunable superconducting quantum interference device. We extract parameters for two
Externí odkaz:
https://doaj.org/article/ee3ed0c8e56e4cd5a1154d0db7eb1861
Autor:
Fei Yan, Jochen Braumüller, Alexander Melville, Youngkyu Sung, Roni Winik, Morten Kjaergaard, Philip Krantz, Bethany Niedzielski, Terry P. Orlando, William D. Oliver, Jonilyn Yoder, Simon Gustavsson, Antti Vepsäläinen, David Kim, Joel I-Jan Wang, Mollie Schwartz, Andreas Bengtsson
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Nature Communications
Sung, Y, Vepsalainen, A, Braumuller, J, Yan, F, Wang, J I-J, Kjaergaard, M, Winik, R, Krantz, P, Bengtsson, A, Melville, A J, Niedzielski, B M, Schwartz, M E, Kim, D K, Yoder, J L, Orlando, T P, Gustavsson, S & Oliver, W D 2021, ' Multi-level quantum noise spectroscopy ', Nature Communications, vol. 12, no. 1, 967 . https://doi.org/10.1038/s41467-021-21098-3
Nature Communications
Sung, Y, Vepsalainen, A, Braumuller, J, Yan, F, Wang, J I-J, Kjaergaard, M, Winik, R, Krantz, P, Bengtsson, A, Melville, A J, Niedzielski, B M, Schwartz, M E, Kim, D K, Yoder, J L, Orlando, T P, Gustavsson, S & Oliver, W D 2021, ' Multi-level quantum noise spectroscopy ', Nature Communications, vol. 12, no. 1, 967 . https://doi.org/10.1038/s41467-021-21098-3
System noise identification is crucial to the engineering of robust quantum systems. Although existing quantum noise spectroscopy (QNS) protocols measure an aggregate amount of noise affecting a quantum system, they generally cannot distinguish betwe
Autor:
Roni Winik, William D. Oliver, Morten Kjaergaard, Terry P. Orlando, Bethany M. Niedzielski, Antti Vepsäläinen, Jonilyn Yoder, David Kim, Simon Gustavsson, Philip Krantz, Jochen Braumüller, Max Ruckriegel, Daniel Campbell, Alexander Melville, Franco Nori, Anton Frisk Kockum, Bharath Kannan
Publikováno v:
Nature. 583:775-779
Models of light–matter interactions in quantum electrodynamics typically invoke the dipole approximation1,2, in which atoms are treated as point-like objects when compared to the wavelength of the electromagnetic modes with which they interact. How
Broadband Squeezed Microwaves and Amplification with a Josephson Traveling-Wave Parametric Amplifier
Autor:
Jack Y. Qiu, Arne Grimsmo, Kaidong Peng, Bharath Kannan, Benjamin Lienhard, Youngkyu Sung, Philip Krantz, Vladimir Bolkhovsky, Greg Calusine, David Kim, Alex Melville, Bethany M. Niedzielski, Jonilyn Yoder, Mollie E. Schwartz, Terry P. Orlando, Irfan Siddiqi, Simon Gustavsson, Kevin P. O’Brien, William D. Oliver
Squeezing of the electromagnetic vacuum is an essential metrological technique used to reduce quantum noise in applications spanning gravitational wave detection, biological microscopy, and quantum information science. In superconducting circuits, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6522a200ffd404663de1bff7a5da0d2b
Autor:
Jonas Bylander, J. Simon, A. Fadavi Roudsari, A. Osman, Andreas Bengtsson, Sandoko Kosen, Daniel Perez Lozano, Per Delsing, Marco Scigliuzzo, Philip Krantz
Publikováno v:
Applied Physics Letters
We introduce a simplified fabrication technique for Josephson junctions and demonstrate superconducting Xmon qubits with $T_1$ relaxation times averaging above 50$~��$s ($Q>$1.5$\times$ 10$^6$). Current shadow-evaporation techniques for aluminum-
Autor:
Terry P. Orlando, Roni Winik, Francisca Vasconcelos, Simon Gustavsson, David Kim, Bethany Niedzielski, Morten Kjaergaard, Philip Krantz, Jonilyn Yoder, William D. Oliver, Alexander Melville, Daniel Campbell, Bharath Kannan
Publikováno v:
Science Advances
We experimentally demonstrate a new method of generating entangled itinerant photons using waveguide quantum electrodynamics.
Realizing a fully connected network of quantum processors requires the ability to distribute quantum entanglement. For
Realizing a fully connected network of quantum processors requires the ability to distribute quantum entanglement. For
Autor:
Slawomir Simbierowicz, Volodymyr Y. Monarkha, Suren Singh, Nizar Messaoudi, Philip Krantz, Russell E. Lake
Publikováno v:
Applied Physics Letters. 120:054004
Systematic errors in qubit state preparation arise due to non-idealities in the qubit control lines such as impedance mismatch. Using a data-based methodology of short-open-load calibration at a temperature of 30 mK, we report calibrated 1-port scatt