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Xiao, Y. |
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Theoretical study of the optoelectronic properties of new type 2DEG materials : multilayer graphene and monolayer MoS2 |
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Doctoral thesis |
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2017 |
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144 p. |
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Doctoral thesis; Condensed Matter Theory (CMT) |
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Call Number |
UA @ admin @ c:irua:144948 |
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8661 |
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Author |
Taghizadeh Sisakht, E. |
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Title |
Tight-binding investigation of the electronic properties of phosphorene and phosphorene nanoribbons |
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Doctoral thesis |
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2019 |
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150 p. |
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Doctoral thesis; Condensed Matter Theory (CMT) |
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abstract not available |
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UA @ admin @ c:irua:166195 |
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8670 |
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Author |
Hasnat Rubel, A. |
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Title |
Theoretical characterization and optimization of nano-engineered superconducting scanning probe tip |
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Doctoral thesis |
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2023 |
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viii, 145 p. |
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Doctoral thesis; Engineering sciences. Technology; Condensed Matter Theory (CMT) |
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Using state-of-the-art simulation methods, we optimized the performance of nanoscale superconducting scanning probe tips for advanced spatial imaging of magnetic fields. The systematic studies of the tips’ static properties as a function of the tilted magnetic field, geometric parameters, and material parameters were carried out. The sensitivity of different superconducting quantum interference devices (SQUIDs) to the magnetic field emanating from the magnetic nanoparticle, where the location of a magnetic nanoparticle is considered below the primary loop's center, was examined as a function of the primary and secondary loop dimensions. The main objective of the research was to characterize and optimize the performance of a nano-sized SQUID-on-tip (SOT) device. Optimal SOT sensitivity was sought, for different loop sizes, arm linewidth, and lead dimensions. Moreover, we revealed that a constriction in the loop arms of the SOT can substantially improve the sensitivity of the device. Finally, the properties of the theta-SOT device were examined in the presence of in-plane and out-of-plane magnetic field components, enabling nanoscale imaging of 3D distributions of the magnetic field. Altogether, the obtained results deliver an engineering solution for the optimum performance of the SOT device in desired conditions. |
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UA @ admin @ c:irua:199494 |
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8942 |
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Reijniers, J.; Partoens, B.; Peremans, H. |
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Title |
Noise-resistant correlation-based alignment of head-related transfer functions for high-fidelity spherical harmonics representation |
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P3 Proceeding |
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2023 |
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P3 Proceeding; Engineering sciences. Technology; Engineering Management (ENM); Condensed Matter Theory (CMT) |
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Abstract |
It is standard practice in virtual reality applications to synthesize binaural audio based on a discrete set of directionally-dependent head-related impulse responses (HRIRs). This set of HRIRs is often time-aligned in a pre-processing step, to allow for high-fidelity interpolation between HRIRs corresponding with neighbouring directions. The fidelity of this operation depends on the similarity of neighbouring aligned HRIRs. The pairwise quality of similarity makes it a difficult criterion to optimize globally and consequently one often resorts to alignment methods based on a specific feature that can be extracted for each HRIR separately, e.g., the first-onset of the peak or the group delay. However, such proxies for similarity are very sensitive to noise and therefore require a high signal-to-noise ratio, which makes them less suitable for processing HRIRs acquired outside an anechoic room. In this paper, we advance a novel alignment method, which maximizes the similarity – defined as the correlation between the full-length HRIRs – between neighbouring aligned HRIRs for all directions at once. We show that this correlation-based alignment procedure outperforms the first-onset alignment with regards to the fidelity of the spherical harmonics representation of both the spectral and interaural time difference (ITD) information, when tested on the KEMAR HRIR and six human HRIRs. Finally, we show that the correlation-based alignment is more robust to noise. |
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UA @ admin @ c:irua:199714 |
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9062 |
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Author |
Jorissen, B.; Fernandes, L. |
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Simple systems, complicated physics : an interview with Nir Navon |
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Editorial |
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Year |
2023 |
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Belgian journal of physics |
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1 |
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6 |
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4-5 |
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Editorial; Theory of quantum systems and complex systems; Condensed Matter Theory (CMT) |
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The EPS Antwerp Young Minds (AYM) invited Prof. Nir Navon (Yale University) to hold a colloquium for the physics department. For an audience of students and researchers, Prof. Navon presented recent advances in ultracold quantum matter and research from his own lab. His experimental work paves the way to make toy models used by theorists a reality. We sat down afterwards to discuss ultracold physics, box traps and setting up a lab from scratch. |
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Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:202673 |
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9090 |
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