Sökning: "thermodynamics"

Visar resultat 16 - 20 av 380 avhandlingar innehållade ordet thermodynamics.

  1. 16. Information Thermodynamics and Fluctuations in Quantum Dots

    Författare :David Barker; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stochastic thermodynamics; Maxwell s demon; quantum dot; charge sensing; information; feedback; Fysicumarkivet A:2022:Barker;

    Sammanfattning : In small systems with large fluctuations, the classical description of thermodynamics is no longer sufficient which has led to the development of stochastic thermodynamics. One important result from stochastic thermodynamics is that with measurement and feedback it is possible to use those fluctuations to extract work from a single heat bath coupled to the system. LÄS MER

  3. 17. Fluctuations and nonequilibrium thermodynamics in electronic nanosystems

    Författare :Ludovico Tesser; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Charge; heat and spin transport; Hot-carrier solar cell; Nonequilibrium thermodynamics; Fluctuations and noise; Shot noise; Mesoscopic thermoelectricity;

    Sammanfattning : In the last decades thermodynamics has seen a resurgence because of the interesting phenomena that happen in small-scale systems. Indeed, in nanoscale devices, quantum effects and fluctuations cannot generally be neglected and influence both the transport and their thermodynamic performance. LÄS MER

  4. 18. Thermodynamics of Hydrogen in Confined Lattice

    Författare :Xin Xiao; Hjörvarsson Björgvin; Max Wolff; Astrid Pundt; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermodynamics hydrogen superlattice;

    Sammanfattning : Three of the most important questions concerning hydrogen storage in metals are how much hydrogen can be absorbed, how fast it can be absorbed (or released) and finally how strongly the hydrogen is bonded. In transition metals hydrogen occupies interstitial sites and the absorption as well as desorption of hydrogen can be fast. LÄS MER

  5. 19. A General Formalism for Continuous Feedback Control in Quantum Systems

    Författare :Björn Annby-Andersson; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; quantum measurements; quantum control; stochastic thermodynamics; information thermodynamics; full count- ing statistics; open quantum systems; Quantum measurements; Quantum control; Stochastic thermodynamics; Information thermodynamics; Full counting statistics; Open quantum systems;

    Sammanfattning : This thesis devolops a general formalism for continuous feedback control in quantum systems. The main result is a quantum Fokker-Planck master equation describing the joint dynamics of a quantum system and a detector with finite bandwidth. For a fast detector, this equation can be reduced to a Markovian master equation for the system dynamics. LÄS MER

  7. 20. Thermodynamics of protein-DNA interactions

    Författare :Thomas Lundbäck; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :DNA-protein interactions; molecular recognition; thermodynamics; specificity.dehydration; salt dependence.;

    Sammanfattning : This thesis treats the molecular recognition between DNA-binding proteins and DNA and the way these interactions are affected by the surrounding water solution and dissolved solutes. The work involves studies on the thermodynamics of sequence specific DNA-binding of the human glucocorticoid receptor DNA-binding domain and the nonsequence specific DNA- binding of Sso7d from the archaeon Sulfolobus solfataricus. LÄS MER