PPT-Gravitational Physics using

Atom Interferometry Mark Kasevich Stanford University Lightpulse a tom interferometers 2015 laboratory sensor atomic wavepackets separate by 12 cm before interfering 1e13 g resolution after 1 hr. Millisecond . Pulsars:. Dan Stinebring. Oberlin College. CWRU – May 21, 2009. . George Greenstein. (Amherst College). Discovery of “Millisecond” Pulsars. 1982 – Arecibo Observatory – Don Backer, Sri Kulkarni, .... To demonstrate the physical reality of gravitational waves, consider the example system of the previous section. We will concentrate our attention on three of the test masses, one chosen arbitrarily from the plane, along with its nearest neighbors in the +x and +y directions. Imagine that we have equipped the mass at the vertex of this “L” with a lamp that can be made to emit very brief pulses of light. Imagine also that the two masses at the ends of the “L” are fitted with mirrors aimed so that they will return the flashes of light back toward the vertex mass. The Child of General Relativity. A Necessary Change. Concepts after Einstein :-. Time is not absolute. There is no ether frame. Notion of . spacetime. Concepts before Einstein :-. There is a preferred reference frame ether. Dipartimento. . di. . Fisica. . U. niversità. . di. Roma . La . Sapienza. & . INFN . Sezione. . di. Roma. Napoli 2 . Aprile. 2014. Experimental Gravitation. Theoretical motivations . supporting the new deal of experiments in Gravitation. Redshift. in Clusters of Galaxies. Marton Trencseni. Eotvos. University, Budapest. Gravitational . Redshift. Photon escapes from gravitational well. G. ains potential energy. Speed cannot decrease =). versus convective . blueshifts. , and wavelength variations across stellar disks. Dainis Dravins. – Lund . Observatory. , Sweden. www.astro.lu.se. /~. dainis. KVA. IAU Comm.30, IAU XXVIII GA Beijing, August 2012. Overview of Why and How. Dan Burbank and Tony Young. AST5022. Introduction. Background. Physics. Sources. Detectors and Detector Implications. Questions. Gravitational Waves . Speed-of-light wave propagation solution of Einstein’s Field Equations. Gravitational Waves. Prediction. General Relativity – 1915. Gravity is not the pulling force envisioned by Kepler or Newton. Space warps around massive objects. Accelerating massive objects could radiate distortions like the wake of a boat. Interferometry. Prof. Mark Kasevich. Dept. of Physics and Applied Physics. Stanford University, Stanford CA. Atom . interferometric. inertial sensors. Pulses of light are used to coherently manipulated the center-of-mass motion of atomic . "for decisive contributions to the LIGO detector and the observation of gravitational waves". Peter Berg. Department of Science. University of Alberta. www.peterberg.net . Source: https://www.mpg.de/11646260/neutron-star-merger-gravitational-waves. pcos.gsfc.nasa.gov. Ann Hornschemeier . PCOS Chief Scientist. Expand our knowledge of dark energy. Precisely measure the cosmological parameters governing the evolution of the universe and test the inflation hypothesis of the Big Bang . European Gravitational Observatory. EGO. “Raison d'être”, origin, structure . & future perspectives. Federico Ferrini . – EGO Director. Welcome to. The Einstein Telescope. Design Study Presentation. P3 Challenge – A rotating fan completes 1200 revolutions every minute. Consider the tip of a blade, at a radius of 0.15 m. a) Through what distance does the tip move in one revolution? What are b) the tip’s speed and c) the magnitude of its centripetal acceleration? . https://www.ligo.caltech.edu/system/video_items/files/4/EinsteinsMessengerLIGO.mp4?1436490806. 2017 Nobel Prize in Physics. : Rainer Weiss - Barry C. . Barish. -Kip S. . Thorne. "for . decisive contributions to the LIGO detector and the observation of gravitational waves".