Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Agustin Di Paolo"'
Autor:
Mallika T. Randeria, Thomas M. Hazard, Agustin Di Paolo, Kate Azar, Max Hays, Leon Ding, Junyoung An, Michael Gingras, Bethany M. Niedzielski, Hannah Stickler, Jeffrey A. Grover, Jonilyn L. Yoder, Mollie E. Schwartz, William D. Oliver, Kyle Serniak
Publikováno v:
PRX Quantum, Vol 5, Iss 3, p 030341 (2024)
Phase slips occur across all Josephson junctions (JJs) at a rate that increases with the impedance of the junction. In superconducting qubits composed of JJ-array superinductors—such as fluxonium—phase slips in the array can lead to decoherence.
Externí odkaz:
https://doaj.org/article/92342e33962640e1be2d3f4fe23ad485
Autor:
Antti Vepsäläinen, Roni Winik, Amir H. Karamlou, Jochen Braumüller, Agustin Di Paolo, Youngkyu Sung, Bharath Kannan, Morten Kjaergaard, David K. Kim, Alexander J. Melville, Bethany M. Niedzielski, Jonilyn L. Yoder, Simon Gustavsson, William D. Oliver
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
The presence of various noises in the qubit environment is a major limitation on qubit coherence time. Here, the authors demonstrate the use a closed-loop feedback to stabilize frequency noise in a flux-tunable superconducting qubit and suggest this
Externí odkaz:
https://doaj.org/article/ae1c2a1c49804716a1d8db576a82d8d0
Autor:
Amir H. Karamlou, Jochen Braumüller, Yariv Yanay, Agustin Di Paolo, Patrick M. Harrington, Bharath Kannan, David Kim, Morten Kjaergaard, Alexander Melville, Sarah Muschinske, Bethany M. Niedzielski, Antti Vepsäläinen, Roni Winik, Jonilyn L. Yoder, Mollie Schwartz, Charles Tahan, Terry P. Orlando, Simon Gustavsson, William D. Oliver
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-8 (2022)
Abstract Particle transport and localization phenomena in condensed-matter systems can be modeled using a tight-binding lattice Hamiltonian. The ideal experimental emulation of such a model utilizes simultaneous, high-fidelity control and readout of
Externí odkaz:
https://doaj.org/article/6d5620e008104427a774c83732d77e6a
Autor:
Leon Ding, Max Hays, Youngkyu Sung, Bharath Kannan, Junyoung An, Agustin Di Paolo, Amir H. Karamlou, Thomas M. Hazard, Kate Azar, David K. Kim, Bethany M. Niedzielski, Alexander Melville, Mollie E. Schwartz, Jonilyn L. Yoder, Terry P. Orlando, Simon Gustavsson, Jeffrey A. Grover, Kyle Serniak, William D. Oliver
Publikováno v:
Physical Review X, Vol 13, Iss 3, p 031035 (2023)
We propose and demonstrate an architecture for fluxonium-fluxonium two-qubit gates mediated by transmon couplers (FTF, for fluxonium-transmon-fluxonium). Relative to architectures that exclusively rely on a direct coupling between fluxonium qubits, F
Externí odkaz:
https://doaj.org/article/cf8e426d759a4b02a3355455961da0b9
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-11 (2021)
Abstract We use a tensor network method to compute the low-energy excitations of a large-scale fluxonium qubit up to a desired accuracy. We employ this numerical technique to estimate the pure-dephasing coherence time of the fluxonium qubit due to ch
Externí odkaz:
https://doaj.org/article/14ba4cdcfdf34b19b72748b00ad90274
Autor:
Élie Genois, Jonathan A. Gross, Agustin Di Paolo, Noah J. Stevenson, Gerwin Koolstra, Akel Hashim, Irfan Siddiqi, Alexandre Blais
Publikováno v:
PRX Quantum, Vol 2, Iss 4, p 040355 (2021)
Machine learning (ML) is a promising approach for performing challenging quantum-information tasks such as device characterization, calibration, and control. ML models can train directly on the data produced by a quantum device while remaining agnost
Externí odkaz:
https://doaj.org/article/e304843968ec4a86988cc818bba8cf5d
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033266 (2021)
The controls enacting logical operations on quantum systems are described by time-dependent Hamiltonians that often include rapid oscillations. In order to accurately capture the resulting time dynamics in numerical simulations, a very small integrat
Externí odkaz:
https://doaj.org/article/8dec65693f244394a5afb3dbf9d943e2
Autor:
András Gyenis, Agustin Di Paolo, Jens Koch, Alexandre Blais, Andrew A. Houck, David I. Schuster
Publikováno v:
PRX Quantum, Vol 2, Iss 3, p 030101 (2021)
Artificial atoms realized by superconducting circuits offer unique opportunities to store and process quantum information with high fidelity. Among them, implementations of circuits that harness intrinsic noise protection have been rapidly developed
Externí odkaz:
https://doaj.org/article/f24e4211e43c4e3b81e959674ce8d7c0
Autor:
Alexandre Choquette, Agustin Di Paolo, Panagiotis Kl. Barkoutsos, David Sénéchal, Ivano Tavernelli, Alexandre Blais
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023092 (2021)
A central component of variational quantum algorithms (VQAs) is the state-preparation circuit, also known as ansatz or variational form. This circuit is most commonly designed such as to exploit symmetries of the problem Hamiltonian and, in this way,
Externí odkaz:
https://doaj.org/article/3ed201530e3d444d84ea0c668b955eae
Autor:
András Gyenis, Pranav S. Mundada, Agustin Di Paolo, Thomas M. Hazard, Xinyuan You, David I. Schuster, Jens Koch, Alexandre Blais, Andrew A. Houck
Publikováno v:
PRX Quantum, Vol 2, Iss 1, p 010339 (2021)
Encoding a qubit in logical quantum states with wave functions characterized by disjoint support and robust energies can offer simultaneous protection against relaxation and pure dephasing. One of the most promising candidates for such a fully protec
Externí odkaz:
https://doaj.org/article/dd431a13a5e74cb08435ad97fcce2a51