Zobrazeno 1 - 10
of 191
pro vyhledávání: '"David P. DiVincenzo"'
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033128 (2024)
The development of quantum computing hardware is facing the challenge that current-day quantum processors, comprising 50–100 qubits, already operate outside the range of quantum simulation on classical computers. In this paper we demonstrate that t
Externí odkaz:
https://doaj.org/article/51bef6e5e11543d193550495a60bc93a
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
Superconducting quantum processors need to balance intentional disorder (to protect qubits) and nonlinear resonator coupling (to manipulate qubits), while avoiding chaotic instabilities. Berke et al. use the techniques of many-body localization theor
Externí odkaz:
https://doaj.org/article/7e903a5a07714ec491f83ff278efcd85
Autor:
Martin Rymarz, David P. DiVincenzo
Publikováno v:
Physical Review X, Vol 13, Iss 2, p 021017 (2023)
The theory of circuit quantum electrodynamics has successfully analyzed superconducting circuits on the basis of the classical Lagrangian, and the corresponding quantized Hamiltonian describing these circuits. In many simplified versions of these net
Externí odkaz:
https://doaj.org/article/0fcd654316b34a9fa580240de23f642b
Publikováno v:
Physical Review X, Vol 11, Iss 1, p 011032 (2021)
We present a circuit design composed of two Josephson junctions coupled by a nonreciprocal element, the gyrator, whose ground space is doubly degenerate. The ground states are approximate code words of the Gottesman-Kitaev-Preskill code. We determine
Externí odkaz:
https://doaj.org/article/4af2a1148397427a972a2d53ce1c2586
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033128 (2019)
In circuit QED, a Rabi model can be derived by truncating the Hilbert space of an anharmonic qubit coupled to a resonator. This truncation breaks the gauge invariance present in the full Hamiltonian. Here we derive a simple criterion for an optimal g
Externí odkaz:
https://doaj.org/article/6037c6b881fd42299cb91101a14422da
Autor:
Giovanni Viola, David P. DiVincenzo
Publikováno v:
Physical Review X, Vol 4, Iss 3, p 039902 (2014)
Externí odkaz:
https://doaj.org/article/5fde00e56bfd4883b2bd4d09bd95858a
Autor:
Giovanni Viola, David P. DiVincenzo
Publikováno v:
Physical Review X, Vol 4, Iss 2, p 021019 (2014)
The electronic circulator and its close relative the gyrator are invaluable tools for noise management and signal routing in the current generation of low-temperature microwave systems for the implementation of new quantum technologies. The current i
Externí odkaz:
https://doaj.org/article/54cc73b047854b7c89275827264063b2
Publikováno v:
Annales Henri Poincaré 23(8), 2745-2768 (2022). doi:10.1007/s00023-021-01150-0
Annales Henri Poincaré
Annales Henri Poincaré
We solve the coupled recurrence relations for eigenenergies and -vectors in nondegenerate Rayleigh-Schr\"odinger perturbation theory under the constraint that the approximate eigenvector be normalised to $1$ in every order. The series can be expresse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bb2e4a932f5d328c3fd28ec810a734a
http://arxiv.org/abs/2105.05009
http://arxiv.org/abs/2105.05009
Autor:
David P. DiVincenzo, Cica Gustiani
Publikováno v:
Quantum science and technology 6(4), 045022-(2021). doi:10.1088/2058-9565/ac13c8
Quantum science and technology 6(4), 045022 (2021). doi:10.1088/2058-9565/ac13c8
Quantum science and technology 6(4), 045022 (2021). doi:10.1088/2058-9565/ac13c8
In the standard oracle model, an oracle efficiently evaluates an unknown classical function independent of the quantum algorithm itself. Quantum algorithms have a complex interrelationship to their oracles; for example the possibility of quantum spee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34887467a855b8145619b443c0bba20f
https://hdl.handle.net/2128/29500
https://hdl.handle.net/2128/29500
Publikováno v:
Physical review / A 102(3), 032623 (2020). doi:10.1103/PhysRevA.102.032623
We study how single-qubit dispersive readout works alongside two qubit coupling. To make calculations analytically tractable, we use a simplified model which retains core characteristics of but is discretised compared to dispersive homodyne detection