Now showing items 84-103 of 242

    Imaging cytometry technology for environmental and biomedical applications 

    Pérez Rosas, Juan Miguel (Date of defense: 2020-07-28)

    Early detection of microorganisms in environmental and biomedical applications is critical for the effective response to potential pathogenic treats. Most traditional methods and instrumentation for the analysis of these ...

    Impact of imperfections on correlation-based quantum information protocols 

    Passaro, Elsa (Date of defense: 2016-05-30)

    Quantum information science is a rapidly evolving field both from the theoretical and the experimental viewpoint, motivated by the fact that protocols exploiting quantum resources can perform tasks that are unfeasible in ...

    Inhomogeneity and disorder in ultrafast phase transitions 

    Pérez Salinas, Daniel (Date of defense: 2022-01-31)

    In the recent decades, there has been a surge of interest in the wide array of emergent phenomena found in strongly correlated materials. Understanding the inner workings of this type of systems is a major challenge due ...

    Insights on the spatiotemporal organization of integrins and their ligands using quantitative biophysical tools 

    Sosa Costa, Alberto (Date of defense: 2017-03-02)

    The migration of leukocytes from the blood stream to sites of injury and infection in the extravascular tissues is fundamental for the immune response. Two of the main receptors mediating this process are the integrins ...

    The insulator-metal phase transition in VO2 measured at nanometer length scales and femtosecond time scales 

    Vidas, Luciana (Date of defense: 2019-05-02)

    The physics of transition-metal oxides presents a challenge to our current understanding of condensed matter physics. The main difficulty arises from a competition between electron-electron and electron-phonon interactions ...

    Integrated photonic transmitters for secure space quantum communication 

    Jofre Cruanyes, Marc (Date of defense: 2013-04-15)

    An important issue in today's information society is the security of data transmission against potential intruders, which always put at risk the confidentiality. Current methods to increase security require that the two ...

    Integration and electrical manipulation of single-photon sources in 2-dimensional devices 

    Ciancico, Carlotta (Date of defense: 2021-12-09)

    Quantum nanophotonics aims at studying the interaction between matter and single photons at the nanoscale. Nanoscopic solid state light sources can be placed in near proximity to other photonic elements to engineer their ...

    Interaction-based nonlinear quantum metrology with a cold atomic ensemble 

    Napolitano, Mario (Date of defense: 2014-02-07)

    In this manuscript we present an experimental and theoretical investigation of quantum-noise-limited measurement by nonlinear interferometry, or from another perspective, quantum-noise-limited interaction-based measurement. ...

    Intrinsic randomness in non-local theories: quantification and amplification 

    Dhara, Chirag (Date of defense: 2013-06-12)

    Quantum mechanics was developed as a response to the inadequacy of classical physics in explaining certain physical phenomena. While it has proved immensely successful, it also presents several features that severely ...

    Investigating quantum many-body systems with tensor networks, machine learning and quantum computers 

    Kottmann, Korbinian Gebhard (Date of defense: 2022-10-14)

    (English) We perform quantum simulation on classical and quantum computers and set up a machine learning framework in which we can map out phase diagrams of known and unknown quantum many-body systems in an unsupervised ...

    Investigations of topological phases for quasi-1D systems 

    Tirrito, Emanuele (Date of defense: 2020-07-13)

    For a long time, quantum states of matter have been successfully characterized by the Ginzburg-Landau formalism that was able to classify all different types of phase transitions. This view changed with the discovery of ...

    Large-scale imaging of optical antennas and single molecules 

    Saemisch, Lisa (Date of defense: 2021-04-15)

    The interaction of light and matter is of crucial importance in fundamental science as well as in high-end technology. Ultimately, this concerns the interaction between a photon and a single quantum system, e.g. the ...

    Laser-induced electron interferences from atoms and molecules 

    Sánchez, Aurelien (Date of defense: 2022-07-25)

    Since discovering wave-particle duality, science has changed our perception of light and matter, especially at the subatomic level. Thanks to such discoveries, we have been able to develop and expand our scientific knowledge ...

    Lens-free interferometric microscope for transparent materials 

    Terborg, Roland A. (Date of defense: 2018-10-19)

    As health systems fight against epidemics and infectious diseases, new forms of diagnostics need to be developed in order to meet the growing demand for services, often in locations without the necessary infrastructure. ...

    Levitation and control of particles with internal degrees of freedom 

    Planes Conangla, Gerard (Date of defense: 2020-06-30)

    Levitodynamics is a fast growing field that studies the levitation and manipulation of micro- and nanoobjects, fuelled by both fundamental physics questions and technological applications. Due to the isolated nature of ...

    Levitodynamics on-a-chip: from planar Paul traps to near-field optical nanocavities 

    Alda, Irene (Date of defense: 2020-07-09)

    The field of levitation optomechanics---or levitodynamics---studies the manipulation and control of small trapped objects in an isolated environment, providing a gateway to answer fundamental questions in physics and ...

    Levitodynamics toward force nano-sensors in vacuum 

    Ricci, Francesco, 1987- (Date of defense: 2019-02-22)

    Levitodynamics addresses the levitation and manipulation of micro- and nanoresonators with the purpose of studying their dynamics. This emerging field has attracted much attention over the last few years owing to unprecedented ...

    Light absorption and ergodicity in systems that transform light into other forms of energy 

    Ferreira, Catarina Gonçalves (Date of defense: 2023-09-27)

    (English) To mitigate the present environmental crisis, caused by the excessive use of fossil fuels and associated release of carbon dioxide into the atmosphere, it is necessary to significantly reduce worldwide energy ...

    Light enhancements in nano-structured solar cells 

    Pastorelli, Francesco (Date of defense: 2013-12-09)

    In this century some of our main issues are energy shortage and pollution. This work will briefly describe these problems, proposing a plan of action combining energy saving and different sustainable energy sources. Within ...

    Light generation and manipulation from nonlinear randomly distributed domains in SBN 

    Yao, Can (Date of defense: 2014-06-25)

    Disordered media with refractive index variations can be found in the atmosphere, the ocean, and in many materials or biological tissues. Several technologies that make use of such random media, as image formation, satellite ...