With energies greater than a PeV, cosmic rays from galactic (and extra-galactic) sources are too rare to detect directly. Instead, large ground-based detector arrays catch the secondary particles from the extensive air showers that cosmic rays produce in the atmosphere, and attempt to determine indirectly the underlying spectrum and mass composition. The IceCube Observatory has a surface detector called IceTop, which can help to answer these questions... questions which are linked to the mystery of these particles' origin.
Collective behavior of organisms creates environmental micro-niches that buffer them from environmental fluctuations e.g., temperature, humidity, mechanical perturbations, etc., thus coupling organismal physiology, environmental physics, and population ecology. This talk will focus on a combination of biological experiments, theory, and computation to understand how a collective of bees can integrate physical and behavioral cues to attain a non-equilibrium steady state that allows them to resist and respond to environmental fluctuations of forces and flows.
Superconducting circuits have emerged as one of the most promising platforms for quantum computation as a result of rapid advances in coherence and control over the past few decades. Most modern superconducting processors are based on the transmon circuit, and rely on nearest-neighbor interactions for gate operations and entanglement. In this talk, I will present an alternative architecture for superconducting quantum information and simulation, involving many harmonic modes of a multimode cavity coupled and controlled by a single transmon circuit.
We are in the midst of a second quantum revolution in which the laws of quantum mechanics are being applied to gain information processing and computational advantage. However, in order to accomplish tasks that are well beyond the reach of CMOS-based, von Neumann computers operating today, quantum-logic operations must be performed with ultrahigh degree of accuracy.
Living cells and tissues are highly mechanically sensitive and active. Mechanical forces and stimuli influence the shape, motility, and functions of cells, modulate the behavior of tissues, and play a key role in diseases as different as osteoarthritis and cancer metastasis. In this talk, I will discuss how collective biophysical properties of tissues emerge from the interplay between different mechanical properties and statistical physics of underlying components.