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pro vyhledávání: '"Arvidsson P"'
Given two observables $A$ and $B$, one can associate to every quantum state a Kirkwood-Dirac (KD) quasiprobability distribution. KD distributions are like joint classical probabilities except that they can have negative or nonreal values, which are a
Externí odkaz:
http://arxiv.org/abs/2407.04558
Autor:
Long, Christopher K., Mayhall, Nicholas J., Economou, Sophia E., Barnes, Edwin, Barnes, Crispin H. W., Martins, Frederico, Arvidsson-Shukur, David R. M., Mertig, Normann
Standing as one of the most significant barriers to reaching quantum advantage, state-preparation fidelities on noisy intermediate-scale quantum processors suffer from quantum-gate errors, which accumulate over time. A potential remedy is pulse-based
Externí odkaz:
http://arxiv.org/abs/2406.10913
Autor:
Langrenez, Christopher, Salmon, Wilfred, De Bièvre, Stephan, Thio, Jonathan J., Long, Christopher K., Arvidsson-Shukur, David R. M.
A central problem in quantum information is determining quantum-classical boundaries. A useful notion of classicality is provided by the quasiprobability formulation of quantum theory. In this framework, a state is called classical if it is represent
Externí odkaz:
http://arxiv.org/abs/2405.17557
Autor:
Ruiz, Alejandro Antón, Hosseinzadegan, Samar, Kvarnstrand, John, Arvidsson, Klas, Glazunov, Andrés Alayón
Publikováno v:
A. A. Ruiz, S. Hosseinzadegan, J. Kvarnstrand, K. Arvidsson and A. A. Glazunov, "Total Radiated Power Measurements of a mmWave Phased Array in a Reverberation Chamber," 2023 IEEE ISAP, Kuala Lumpur, Malaysia, 2023, pp. 1-2
This paper explores the use of reverberation chambers for TRP measurements of beamformed radiation by phased arrays at mmWave frequencies. First, the received power was verified by the one-sample K-S GoF test to follow the exponential probability dis
Externí odkaz:
http://arxiv.org/abs/2405.14651
Autor:
Ruiz, Alejandro Antón, Hosseinzadegan, Samar, Kvarnstrand, John, Arvidsson, Klas, Glazunov, Andrés Alayón
Publikováno v:
A. A. Ruiz, S. Hosseinzadegan, J. Kvarnstrand, K. Arvidsson and A. A. Glazunov, "K-Factor Evaluation in a Hybrid Reverberation Chamber Plus CATR OTA Testing Setup," 2024 18th EuCAP, Glasgow, United Kingdom, 2024, pp. 1-5
This paper investigates achieving diverse K-factors using a Reverberation Chamber (RC) with a Compact Antenna Test Range (CATR) system. It explores six hybrid "RC plus CATR" configurations involving different excitations of the Rich Isotropic Multipa
Externí odkaz:
http://arxiv.org/abs/2405.14640
We study force gradient sensing by a coherently driven mechanical resonator with phase-sensitive detection of motion via the two-tone backaction evading measurement of cavity optomechanics. The response of the cavity to two coherent pumps is solved b
Externí odkaz:
http://arxiv.org/abs/2405.06589
Digital twinning of vehicles is an iconic application of digital twins, as the concept of twinning dates back to the twinning of NASA space vehicles. Although digital twins (DTs) in the automotive industry have been recognized for their ability to im
Externí odkaz:
http://arxiv.org/abs/2404.08438
The James-Stein estimator is a biased estimator -- for a finite number of samples its expected value is not the true mean. The maximum-likelihood estimator (MLE), is unbiased and asymptotically optimal. Yet, when estimating the mean of $3$ or more no
Externí odkaz:
http://arxiv.org/abs/2404.02203
Autor:
Arvidsson-Shukur, David R. M., Braasch Jr., William F., De Bievre, Stephan, Dressel, Justin, Jordan, Andrew N., Langrenez, Christopher, Lostaglio, Matteo, Lundeen, Jeff S., Halpern, Nicole Yunger
The most famous quasi-probability distribution, the Wigner function, has played a pivotal role in the development of a continuous-variable quantum theory that has clear analogues of position and momentum. However, the Wigner function is ill-suited fo
Externí odkaz:
http://arxiv.org/abs/2403.18899
Autor:
Song, Xingrui, Salvati, Flavio, Gaikwad, Chandrashekhar, Halpern, Nicole Yunger, Arvidsson-Shukur, David R. M., Murch, Kater
Publikováno v:
Phys. Rev. Lett. 132, 260801 (2024)
The goal of quantum metrology is to improve measurements' sensitivities by harnessing quantum resources. Metrologists often aim to maximize the quantum Fisher information, which bounds the measurement setup's sensitivity. In studies of fundamental li
Externí odkaz:
http://arxiv.org/abs/2403.00054