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Dekking, F.M. (author), Simon, Károly (author), Székely, Balázs (author), Szekeres, Nóra (author)Can we find a self-similar set on the line with positive Lebesgue measure and empty interior? Currently, we do not have the answer for this question for deterministic self-similar sets. In this paper we answer this question negatively for random self-similar sets which are defined with the construction introduced in the paper by Jordan et al. ...journal article 2024
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Simon, B.G. (author)Spin waves are the elementary excitations of magnetic materials. They are interesting because of their rich physics and potential role in low-dissipation information technology. To better understand spin-wave transport and explore new ways to control it, this thesis focuses on developing magnetic-imaging techniques based on the single spin of...doctoral thesis 2023
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Verbraeck, A. (author), Bosch-Rekveldt, M.G.C. (author), Rye, Sara (author), Simon, Peter (author)Project Risk Management helps with achieving project objectives, especially those concerning cost, time and quality. In the current APM definition, project risks are uncertain events or circumstances that may or may not happen. Risks are either threats that hurt the project objectives, or opportunities that are positive for the project...other 2023
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Ghiasi, T.S. (author), Borst, M. (author), Kurdi, S. (author), Simon, B.G. (author), Bertelli, I. (author), Boix-Constant, Carla (author), Mañas Valero, S. (author), van der Zant, H.S.J. (author), van der Sar, T. (author)Magnetic imaging using nitrogen-vacancy (NV) spins in diamonds is a powerful technique for acquiring quantitative information about sub-micron scale magnetic order. A major challenge for its application in the research on two-dimensional (2D) magnets is the positioning of the NV centers at a well-defined, nanoscale distance to the target...journal article 2023
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Carmiggelt, J.J. (author), Bertelli, I. (author), Mulder, R.W. (author), Teepe, A. (author), Elyasi, Mehrdad (author), Simon, B.G. (author), Bauer, G.E. (author), Blanter, Y.M. (author), van der Sar, T. (author)Quantum sensing has developed into a main branch of quantum science and technology. It aims at measuring physical quantities with high resolution, sensitivity, and dynamic range. Electron spins in diamond are powerful magnetic field sensors, but their sensitivity in the microwave regime is limited to a narrow band around their resonance...journal article 2023
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Borst, M. (author), Vree, P.H. (author), Lowther, A. (author), Teepe, A. (author), Kurdi, S. (author), Bertelli, I. (author), Simon, B.G. (author), Blanter, Y.M. (author), van der Sar, T. (author)Superconductors are materials with zero electrical resistivity and the ability to expel magnetic fields, which is known as the Meissner effect. Their dissipationless diamagnetic response is central to magnetic levitation and circuits such as quantum interference devices. In this work, we used superconducting diamagnetism to shape the magnetic...journal article 2023
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Otosaka, I.N. (author), Shepherd, Andrew (author), Ivins, Erik R. (author), Schlegel, Nicole-Jeanne (author), Amory, Charles (author), Simon, K.M. (author), Schrama, Ernst (author), van der Wal, W. (author), Wouters, B. (author)Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from the Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE). We compare and combine 50 independent...journal article 2023
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Simon, J. M. (author), Krüger, P. (author), Schnell, S. K. (author), Vlugt, T.J.H. (author), Kjelstrup, S. (author), Bedeaux, D. (author)The Kirkwood-Buff theory is a cornerstone of the statistical mechanics of liquids and solutions. It relates volume integrals over the radial distribution function, so-called Kirkwood-Buff integrals (KBIs), to particle number fluctuations and thereby to various macroscopic thermodynamic quantities such as the isothermal compressibility and...journal article 2022
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Simon, K.M. (author), Riva, R.E.M. (author), Broerse, D.B.T. (author)In this study, we examine the effect of transient mantle creep on the prediction of glacial isostatic adjustment (GIA) signals. Specifically, we compare predictions of relative sea level (RSL) change from GIA from a set of Earth models in which transient creep parameters are varied in a simple Burgers model to a reference case with a Maxwell...journal article 2022
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Simon, B.G. (author), Kurdi, S. (author), Carmiggelt, J.J. (author), Borst, M. (author), Katan, A.J. (author), van der Sar, T. (author)Nitrogen-vacancy (NV) magnetometry is a new technique for imaging spin waves in magnetic materials. It detects spin waves by their microwave magnetic stray fields, which decay evanescently on the scale of the spin-wavelength. Here, we use nanoscale control of a single-NV sensor as a wavelength filter to characterize frequency-degenerate spin...journal article 2022
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Bertelli, I. (author), Simon, B.G. (author), Yu, T. (author), Aarts, Jan (author), Bauer, G.E. (author), Blanter, Y.M. (author), van der Sar, T. (author)Spin waves in magnetic insulators are low-damping signal carriers that can enable a new generation of spintronic devices. The excitation, control, and detection of spin waves by metal electrodes is crucial for interfacing these devices to electrical circuits. As such, it is important to understand metal-induced damping of spin-wave transport,...journal article 2021
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Simon, B.G. (author), Kurdi, S. (author), La, Helena (author), Bertelli, I. (author), Carmiggelt, J.J. (author), Ruf, M.T. (author), de Jong, N. (author), van den Berg, J.H. (author), Katan, A.J. (author), van der Sar, T. (author)Controlling magnon densities in magnetic materials enables driving spin transport in magnonic devices. We demonstrate the creation of large, out-of-equilibrium magnon densities in a thin-film magnetic insulator via microwave excitation of coherent spin waves and subsequent multimagnon scattering. We image both the coherent spin waves and the...journal article 2021
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Simon, K.M. (author), Riva, R.E.M. (author), Vermeersen, L.L.A. (author)In this study, we focus on improved constraint of the glacial isostatic adjustment (GIA) signal at present-day, and its role as a contributor to present-day sea level budgets. The main study area extends from the coastal regions of northwestern Europe to northern Europe. Both Holocene relative sea level (RSL) data as well as vertical land...journal article 2021
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Nava Antonio, Guillermo (author), Bertelli, I. (author), Simon, B.G. (author), Medapalli, Rajasekhar (author), Afanasiev, D. (author), van der Sar, T. (author)Magnetic imaging based on nitrogen-vacancy (NV) centers in diamond has emerged as a powerful tool for probing magnetic phenomena in fields ranging from biology to physics. A key strength of NV sensing is its local-probe nature, enabling high-resolution spatial images of magnetic stray fields emanating from a sample. However, this local...journal article 2021
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Dawass, N. (author), Krüger, Peter (author), Schnell, Sondre K. (author), Moultos, O. (author), Economou, Ioannis G. (author), Vlugt, T.J.H. (author), Simon, JM (author)Kirkwood–Buff (KB) integrals provide a connection between microscopic properties and thermodynamic properties of multicomponent fluids. The estimation of KB integrals using molecular simulations of finite systems requires accounting for finite size effects. In the small system method, properties of finite subvolumes with different sizes...journal article 2020
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Bertelli, I. (author), Carmiggelt, J.J. (author), Yu, T. (author), Simon, B.G. (author), Pothoven, C.C. (author), Bauer, G.E. (author), Blanter, Y.M. (author), Aarts, J.M. (author), van der Sar, T. (author)Spin waves-the elementary excitations of magnetic materials-are prime candidate signal carriers for low-dissipation information processing. Being able to image coherent spin-wave transport is crucial for developing interference-based spin-wave devices. We introduce magnetic resonance imaging of the microwave magnetic stray fields that are...journal article 2020
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Simon, K.M. (author), Riva, R.E.M. (author)This work provides a comparison of four approaches that can be used to describe uncertainty in models of the long-term glacial isostatic adjustment (GIA) process. The four methods range from pessimistic to optimistic representations of GIA uncertainty. Each estimation method is applied to selected one dimensional GIA model predictions and...journal article 2020
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Dawass, N. (author), Krüger, Peter (author), Schnell, Sondre K. (author), Simon, Jean Marc (author), Vlugt, T.J.H. (author)The Kirkwood-Buff (KB) theory provides a rigorous framework to predict thermodynamic properties of isotropic liquids from the microscopic structure. Several thermodynamic quantities relate to KB integrals, such as partial molar volumes. KB integrals are expressed as integrals of RDFs over volume but can also be obtained from density...journal article 2019
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Simon, K.M. (author), Riva, R.E.M. (author), Kleinherenbrink, M. (author), Frederikse, T. (author)The glacial isostatic adjustment (GIA) signal at present day is constrained via the joint inversion of geodetic observations and GIA models for a region encompassing northern Europe, the British Isles, and the Barents Sea. The constraining data are Global Positioning System (GPS) vertical crustal velocities and GRACE (Gravity Recovery and...journal article 2018
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Dawass, N. (author), Krüger, Peter (author), Simon, JM (author), Vlugt, T.J.H. (author)The Kirkwood–Buff (KB) theory provides an important connection between microscopic density fluctuations in liquids and macroscopic properties. Recently, Krüger et al. derived equations for KB integrals for finite subvolumes embedded in a reservoir. Using molecular simulation of finite systems, KB integrals can be computed either from density...journal article 2018