Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Kokkelmans, Servaas"'
Parametrized gate circuits are used in plentiful applications in the current NISQ era of quantum computing. These parametrized gates are chiefly implemented using analytically found pulse protocols, often yielding suboptimal gate times, and consequen
Externí odkaz:
http://arxiv.org/abs/2408.00119
Environmental noise on a controlled quantum system is generally modeled by a dissipative Lindblad equation. This equation describes the average state of the system via the density matrix $\rho$. One way of deriving this Lindblad equation is by introd
Externí odkaz:
http://arxiv.org/abs/2401.11758
Autor:
Kosior, Arkadiusz, Kokkelmans, Servaas, Lewenstein, Maciej, Zakrzewski, Jakub, Płodzień, Marcin
Polarons, which arise from the self-trapping interaction between electrons and lattice distortions in a solid, have been known and extensively investigated for nearly a century. Nevertheless, the study of polarons continues to be an active and evolvi
Externí odkaz:
http://arxiv.org/abs/2307.04471
Feshbach resonances of arbitrary width are typically described in terms of two-channel models. Within these models, one usually considers a single dressed resonance, with the option to extend the analysis by including resonant open-channel features t
Externí odkaz:
http://arxiv.org/abs/2302.05642
Publikováno v:
Phys. Rev. Research 5, 033052 (2023)
We investigate the robustness of two-qubit gates to deviations of experimental controls, on a neutral atom platform utilizing Rydberg states. We construct robust CZ gates - employing techniques from quantum optimal control - that retain high Bell sta
Externí odkaz:
http://arxiv.org/abs/2212.10159
Autor:
Postema, Jasper Johannes, Bonizzi, Pietro, Koekoek, Gideon, Westra, Ronald L., Kokkelmans, Servaas J. J. M. F.
Publikováno v:
AVS Quantum Sci. 5, 023803 (2023)
Classical data analysis requires computational efforts that become intractable in the age of Big Data. An essential task in time series analysis is the extraction of physically meaningful information from a noisy time series. One algorithm devised fo
Externí odkaz:
http://arxiv.org/abs/2212.08831
Publikováno v:
Quantum 7, 908 (2023)
This work studies pulse based variational quantum algorithms (VQAs), which are designed to determine the ground state of a quantum mechanical system by combining classical and quantum hardware. In contrast to more standard gate based methods, pulse b
Externí odkaz:
http://arxiv.org/abs/2202.08908
Autor:
Ahmed-Braun, Denise J. M., Jackson, Kenneth G., Smale, Scott, Dale, Colin J., Olsen, Ben A., Kokkelmans, Servaas J. J. M. F., Julienne, Paul S., Thywissen, Joseph H.
Publikováno v:
Phys. Rev. Research 3, 033269 (2021)
We study the near-threshold molecular and collisional physics of a strong $^{40}$K p-wave Feshbach resonance through a combination of measurements, numerical calculations, and modeling. Dimer spectroscopy employs both radio-frequency spin-flip associ
Externí odkaz:
http://arxiv.org/abs/2101.02700
Publikováno v:
Phys. Rev. A 101, 042703 (2020)
We show that recent high-precision measurements of relative on-site interaction energies $\Delta U$ in a Mott insulator require a theoretical description beyond the standard Hubbard-model interpretation, when combined with an accurate coupled-channel
Externí odkaz:
http://arxiv.org/abs/1912.02637
Publikováno v:
Phys. Rev. A 99, 012702 (2019)
We study Efimov physics for three identical bosons interacting via a pairwise square-well potential, analyze the validity of the separable approximation as a function of the interaction strength, and investigate what is needed to improve this approxi
Externí odkaz:
http://arxiv.org/abs/1810.07977