Searched for: author%3A%22Naus%2C+H.W.L.%22
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Boter, J.M. (author), Dehollain, J.P. (author), van Dijk, J.P.G. (author), Xu, Y. (author), Hensgens, T. (author), Versluis, R. (author), Naus, H.W.L. (author), Clarke, J.S. (author), Veldhorst, M. (author), Sebastiano, F. (author), Vandersypen, L.M.K. (author)
One of the main bottlenecks in the pursuit of a large-scale–chip-based quantum computer is the large number of control signals needed to operate qubit systems. As system sizes scale up, the number of terminals required to connect to off-chip control electronics quickly becomes unmanageable. Here, we discuss a quantum-dot spin-qubit architecture...
article 2022
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Naus, H.W.L. (author)
The quantum mechanical measurement process is analyzed by means of an explicit generic model describing the interaction between object and measuring device. The solution of the Schrödinger equation for the whole system refects the 'collapse' of the object wave function. A necessary condition is a sufciently sharply peaked initial measurement...
article 2021
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Boter, J.M. (author), Dehollain, J.P. (author), van Dijk, J.P.G. (author), Xu, Y. (author), Hensgens, T. (author), Versluis, R. (author), Naus, H.W.L. (author), Clarke, J.S. (author), Veldhorst, M. (author), Sebastiano, F. (author), Vandersypen, L.M.K. (author)
conference paper 2021
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Naus, H.W.L. (author), Toh, Y. (author)
Time difference of arrival geolocation is re-analysed exploiting all available time differences, though sticking to closed-form algorithms based on the minimum number of time differences. The additional information is statistically utilised in a sound way. Error estimates for the resulting position and the Cramer-Rao lower bound are derived. The...
article 2020
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Naus, H.W.L. (author), Polinder, H. (author)
conference paper 2020
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Naus, H.W.L. (author)
Noisy Intermediate-Scale Quantum computers are expected to be available this year. It is proposed to exploit such a device for decision making under uncertainty. The probabilistic character of quantum mechanics reflects this uncertainty. Concomitantly, the noise may add to it. The approach is standard in the sense that Bayes decision rule is...
conference paper 2019
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Naus, H.W.L. (author)
Four electron spin qubits in quantum dots are studied by means of an exchange interaction Hamiltonian. The time-independent Schr¨odinger equation is exactly analytically solved for the symmetric case, that is equal qubit frequencies and equal couplings. The spin system can be used as two data-qubits and two ancillas, thereby realizing a X and Z...
conference paper 2019
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Naus, H.W.L. (author), Versluis, R. (author)
conference paper 2019
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Naus, H.W.L. (author), Versluis, R. (author)
article 2017
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Naus, H.W.L. (author)
Geolocation based on time differences of arrival measured by three sensors is studied. Closed-form analytical solutions are derived, even for the cases where one or more sensors are not located on the earth. Exploiting four sensors, full three-dimensional localisation is achieved as well. These numbers of sensors are minimal. The analytical...
article 2016
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Naus, H.W.L. (author), Zwamborn, A.P.M. (author)
The reception of electromagnetic signals depends on the polarisation matching of the transmitting and receiving antenna. The practical matching differs from the theoretical one because of the noise deterioration of the transmitted and eventually received electromagnetic field. In other applications, the polarisation parameters of the receiving...
article 2014
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Giodini, S. (author), Hunter, A.J. (author), Naus, H.W.L. (author), Bakker, B. (author), Bekers, D.J. (author), Ditzel, M. (author), van Vossen, R. (author), Dugelay, S. (author), Baralli, F. (author), Beckers, A.L.D. (author)
Minehunting operations can benefit from the use of Autonomous Underwater Vehicles (AUVs) because these vehicles are able to acquire high-resolution images of the seabed leaving the man out of the minefield. However, because there are severe communication constraints between the AUV and the control platform, the AUV needs to be capable of...
conference paper 2014
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Naus, H.W.L. (author)
The multipole expansion of a general plane polarised electromagnetic field is derived. This is accomplished by calculating the coefficients of the dynamical multipole expansion of electromagnetic fields, representing generic solutions of the Maxwell equations in a source-free region. The analytical results are confirmed by comparing the suitably...
article 2013
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Naus, H.W.L. (author)
The detection of buried insulated wires of finite length with a transmitter–receiver electromagnetic induction sensor is theoretically investigated. The transmitter is modeled as a magnetic dipole. Its electric field induces a current in the cable. Analytical results for its Fourier transform are calculated. Herewith, the magnetic fields at the...
article 2013
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Naus, H.W.L. (author), Zwamborn, A.P.M. (author)
To evaluate a system or platform on its electromagnetic compatibility generally involves the application of several EMC standards. In order to compare applicable standards, one needs a common denominator as a basis. In this study, EMC norms for electromagnetic radiation are assessed statistically. A framework describing stochastic...
article 2012
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Naus, H.W.L. (author)
The Jiles-Atherton effective field theory of ferromagnetic hysteresis is consistently extended to describe the magnetomechanical effect. Whereas Jiles has proposed two such models, one for constant stress and a different one for varying stress, our formalism includes both situations. It is also possible to simultaneously vary applied field and...
article 2011
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Vossen, S.H.J.A. (author), Naus, H.W.L. (author), Zwamborn, A.P.M. (author), TNO Defensie en Veiligheid (author)
The harmonic retrieval (HR) problem concerns the estimation of the frequencies in a sum of real or complex harmonics. Both correlation and cumulant-based approaches are used for this purpose. Cumulant-based HR algorithms use a single 1-D slice of the fourth-order cumulant that is estimated directly from the data. We present a new cumulant-based...
article 2010
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TNO Defensie en Veiligheid (author), Naus, H.W.L. (author)
The response of ion plasmas to external radiation fields is investigated in a quantum mechanical formalism.We focus on the total electric field within the plasma. For general bandpass signals three frequency regions can be distinguished in terms of the plasma frequency. For low frequencies, the external field is shielded. For high frequencies,...
article 2010
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Naus, H.W.L. (author), TNO Defensie en Veiligheid (author)
A selection of the literature on the statistical description of electromagnetic fields and complex cavities is concisely reviewed. Some essential concepts, for example, the application of the central limit theorem and the maximum entropy principle, are scrutinized. Implicit assumptions, biased choices of variables and constraints, and some...
article 2008
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Naus, H.W.L. (author), TNO Defensie en Veiligheid (author)
The emission of electromagnetic radiation by localized complex electric charge and current distributions is studied. A statistical formalism in terms of general dynamical multipole fields is developed. The appearing coefficients are treated as stochastic variables. Hereby as much as possible a priori physical knowledge is exploited. First...
article 2007
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