Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Santos, Jader P."'
The conventional circuit paradigm, utilizing a limited number of gates to construct arbitrary quantum circuits, is hindered by significant noise overhead. For instance, the standard gate paradigm employs two CNOT gates for the partial CPhase rotation
Externí odkaz:
http://arxiv.org/abs/2401.09040
Quantum processors can already execute tasks beyond the reach of classical simulation, albeit for artificial problems. At this point, it is essential to design error metrics that test the experimental accuracy of quantum algorithms with potential for
Externí odkaz:
http://arxiv.org/abs/2305.19359
Publikováno v:
npj Quantum Inf 9, 120 (2023)
Quantum Error Mitigation (QEM) enables the extraction of high-quality results from the presently-available noisy quantum computers. In this approach, the effect of the noise on observables of interest can be mitigated using multiple measurements with
Externí odkaz:
http://arxiv.org/abs/2303.05001
We study the statistics of heat exchange of a quantum system that collides sequentially with an arbitrary number of ancillas. This can describe, for instance, an accelerated particle going through a bubble chamber. Unlike other approaches in the lite
Externí odkaz:
http://arxiv.org/abs/2003.02150
Akademický článek
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Publikováno v:
Phys. Rev. Lett. 124, 240601 (2020)
Landauer's bound relates changes in the entropy of a system with the inevitable dissipation of heat to the environment. The bound, however, becomes trivial in the limit of zero temperature. Here we show that it is possible to derive a tighter bound w
Externí odkaz:
http://arxiv.org/abs/1911.00910
Autor:
Seah, Stella, Nimmrichter, Stefan, Grimmer, Daniel, Santos, Jader P., Scarani, Valerio, Landi, Gabriel T.
Publikováno v:
Phys. Rev. Lett. 123, 180602 (2019)
We introduce a general framework for thermometry based on collisional models, where ancillas probe the temperature of the environment through an intermediary system. This allows for the generation of correlated ancillas even if they are initially ind
Externí odkaz:
http://arxiv.org/abs/1904.12551
Autor:
Malouf, William T. B., Santos, Jader P., Correa, Luis A., Paternostro, Mauro, Landi, Gabriel T.
Publikováno v:
Phys. Rev. A 99, 052104 (2019)
When a quantum system is coupled to several heat baths at different temperatures, it eventually reaches a non-equilibrium steady state featuring stationary internal heat currents. These currents imply that entropy is continually being produced in the
Externí odkaz:
http://arxiv.org/abs/1901.03127
Akademický článek
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Publikováno v:
Phys. Rev. A 97, 052123 (2018)
Quantifying the degree of irreversibility of an open system dynamics represents a problem of both fundamental and applied relevance. Even though a well-known framework exists for thermal baths, the results give diverging results in the limit of zero
Externí odkaz:
http://arxiv.org/abs/1806.04463