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Filtering by: Creator Chien, Chih-Chun Remove constraint Creator: Chien, Chih-Chun Academic Affiliation Physics Remove constraint Academic Affiliation: Physics

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  • Multicellular monolayer’s self-organization under external stimuli

    Creator:
    Li, Guanyu
    Abstract:
    Cell signaling under external stimulation is a critical mechanism that governs many biological processes such as cell proliferation, cell migration, and cell apoptosis, etc. For multicellular organisms, the ability to synchronize heterogeneous individual cellular responses through intercellular communication is crucial to maintain normal functionality. However, even though the biological pathways...
    Resource Type:
    Dissertation

  • Nonlinear behavior of thermal and ion transport at the nanoscale

    Creator:
    Sahu, Subin
    Abstract:
    Functional control at the nanoscale forms the foundation of biological systems. These work at the cellular level by manipulating ions and molecules. Nanoscale devices that give functional control at this scale are also becoming an important component in diverse fields such as electronics, medicine, engineering, and manufacturing. Moreover, scientific advances...
    Resource Type:
    Dissertation
    Full Text:
    also go to Massimiliano Di Ventra, Kirill Velizhanin, Chih- Chun Chien, Yonatan Dubi, Evgheni Strelcov

  • Quantum and Classical Simulation of Electronic Transport at the Nanoscale

    Creator:
    Gruss, Daniel S.
    Abstract:
    Time-dependent electronic transport is increasingly important to the state-of-the-art device design and fabrication. The development of nanoscale sensing, the harnessing and control of structural fluctuations, and the advancement of next-generation materials all require a treatment of quantum dynamics beyond the level of traditional methods and a more nuanced approach to...
    Resource Type:
    Dissertation
    Full Text:
    , Massimiliano Di Ventra, and Chih-Chun Chien. My group members for their discussions and company Subin Sahu

  • Interaction-induced conducting–non-conducting transition of ultra-cold atoms in one-dimensional optical lattices

    Creator:
    Chien, Chih-Chun, Gruss, Daniel, Di Ventra, Massimiliano, and Zwolak, Michael
    Abstract:
    The study of time-dependent, many-body transport phenomena is increasingly within reach of ultra-cold atom experiments. We show that the introduction of spatially inhomogeneous interactions, e.g., generated by optically controlled collisions, induce negative differential conductance in the transport of atoms in one-dimensional optical lattices. Specifically, we simulate the dynamics of interacting...
    Resource Type:
    Article
    Full Text:
    of ultra-cold atoms in one-dimensional optical lattices Chih-Chun Chien1,4, Daniel Gruss2

  • Tunable thermal switching via DNA-based nano-devices

    Creator:
    Chien, Chih-Chun, Velizhanin, Kirill A., Dubi, Yonatan, and Zwolak, Michael
    Abstract:
    DNA has a well-defined structural transition-the denaturation of its double-stranded form into two single strands-that strongly affects its thermal transport properties. We show that, according to a widely implemented model for DNA denaturation, one can engineer DNA 'heattronic' devices that have a rapidly increasing thermal conductance over a narrow temperature...
    Resource Type:
    Article
    Full Text:
    A. Velizhanin, Chih-Chun Chien, Yonatan Dubi, and Michael Zwolak. Driving denaturation: Nanoscale

  • Bosonic and fermionic transport phenomena of ultracold atoms in one-dimensional optical lattices

    Creator:
    Chien, Chih-Chun, Zwolak, Michael, and Di Ventra, Massimiliano
    Abstract:
    Using the microcanonical picture of transport-a framework ideally suited to describe the dynamics of closed quantum systems such as ultracold atom experiments-we show that the exact dynamics of noninteracting fermions and bosons exhibits very different transport properties when the system is set out of equilibrium by removing the particles from...
    Resource Type:
    Article
    Full Text:
    -Chun Chien,1 Michael Zwolak,2 and Massimiliano Di Ventra3 1Theoretical Division, Los Alamos National