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X-WR-CALNAME:Department of Physics and Astronomy
X-ORIGINAL-URL:https://physics.sciences.ncsu.edu
X-WR-CALDESC:Events for Department of Physics and Astronomy
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DTSTART;TZID=America/New_York:20201109T160000
DTEND;TZID=America/New_York:20201109T170000
DTSTAMP:20260415T175923
CREATED:20200708T195247Z
LAST-MODIFIED:20201109T144952Z
UID:17051-1604937600-1604941200@physics.sciences.ncsu.edu
SUMMARY:Physics Colloquium: Herbert Fotso
DESCRIPTION:Title: Making Better Qubits out of Spectrally Noisy Solid State Quantum Emitters\n \nAbstract: Many of the systems that are promising implementations of qubits for quantum information processing are solid state quantum emitters. Most of these systems are subject to spectral diffusion: the random drift of the emission/absorption spectrum away from a set target frequency. This uncontrolled dynamics is due to the fluctuations (strain\, charge or spin) in the surrounding bath and adversely affects many fundamental operations for scalable quantum information processing platforms. Essential photon-mediated operations can be particularly sensitive to these uncontrolled variations.  In particular\, the ability to entangle distant quantum nodes is essential for the construction of quantum networks and the realization of basic quantum gates. For solid-state quantum emitters\, entanglement generation is often achieved by photon interference and can be highly inefficient for these qubits because of spectral diffusion. We will discuss optical properties of quantum emitters in dynamic environments when they are driven by suitable external fields and show that the emission/absorption spectrum can be kept fixed despite the influence of the environment. Furthermore\, we will show that photon indistinguishability assessed through two-photon interference can be greatly enhanced by suitable pulse control protocols. \nHost: Lex Kemper
URL:https://physics.sciences.ncsu.edu/event/physics-colloquium-herbert-fotso-university-at-albany/
LOCATION:NC
CATEGORIES:Colloquia
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201113T133000
DTEND;TZID=America/New_York:20201113T150000
DTSTAMP:20260415T175923
CREATED:20201110T192656Z
LAST-MODIFIED:20201110T192656Z
UID:17468-1605274200-1605279600@physics.sciences.ncsu.edu
SUMMARY:Preliminary Exam - Marcus Begley
DESCRIPTION:The dynamic mechanical response of the mammalian k-fiber to physical and molecular perturbations
URL:https://physics.sciences.ncsu.edu/event/preliminary-exam-marcus-begley/
LOCATION:NC
CATEGORIES:In The Department
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201118T150000
DTEND;TZID=America/New_York:20201118T170000
DTSTAMP:20260415T175923
CREATED:20201111T184212Z
LAST-MODIFIED:20201111T184212Z
UID:17476-1605711600-1605718800@physics.sciences.ncsu.edu
SUMMARY:Preliminary Exam - Jiahui Zhang
DESCRIPTION:Modeling and Understanding Triple Helix Nucleic Acids
URL:https://physics.sciences.ncsu.edu/event/preliminary-exam-jiahui-zhang/
LOCATION:NC
CATEGORIES:In The Department
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20201130T160000
DTEND;TZID=America/New_York:20201130T170000
DTSTAMP:20260415T175923
CREATED:20200708T195319Z
LAST-MODIFIED:20201123T131142Z
UID:17053-1606752000-1606755600@physics.sciences.ncsu.edu
SUMMARY:Physics Colloquium: Claude-André Faucher-Giguère
DESCRIPTION:Title: How do Galaxies form? New insights from the FIRE simulations and the role of inner CGM virialization \nAbstract: Galaxies are remarkably diverse in their properties\, ranging from irregular to disky to elliptical in morphology\, and from blue to red in color. At the same time\, when analyzed systematically\, galaxy populations exhibit striking regularities\, with clear trends with mass and redshift. How does this “regular complexity” emerge from the hot Big Bang? I will present results from the FIRE simulations which shed some light onto the processes that shape galaxies. The FIRE zoom-in simulations resolve the multiphase interstellar medium of galaxies and model several different feedback processes (including Type II/Ia supernovae\, stellar winds\, and radiation) while including the cosmological environment. I will highlight recent results on the formation of disk galaxies\, the “burstiness” of star formation\, and galactic winds. Our new results indicate that transitions in each of these important phenomena can be simultaneously explained by a phase transition in the inner circumgalactic medium\, “inner CGM virialization” (ICV)\, and arise from the interplay between feedback energy produced on small scales and the physics of halo gas on larger scales. \nHost: Rongmond Bordoloi
URL:https://physics.sciences.ncsu.edu/event/physics-colloquium-claude-andre-faucher-giguere-northwestern-university/
LOCATION:NC
CATEGORIES:College of Sciences Calendar,Colloquia
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