FREE Lecture “Is Space Real?” Craig Hogan University of Chicago and Fermilab This Thursday, August 23 6:00-7:00 PM Paepcke Auditorium Space— the familiar space we live in, right here and now— is the first concept of physics we all learn as little kids, yet it is entangled with some of the deepest mysteries confronting physics. Space is based on the idea of locality, but experiments show that in reality, nothing happens at definite time or place, which suggests that space is not as real as it seems. It has been suggested that all the space of the universe began, and may end, dominated by the energy of the vacuum, expanding and devoid of particles; that when examined over very short time intervals, space as we know it does not even exist, but dissolves into a cloud of quantum indeterminacy, and constantly seethes in microscopic ambiguity; that space has either more than three dimensions or fewer, depending on how you look at it; that reality carries only a finite amount of information, and unfolds at the Planck frequency, about 10^44 bits per second. It may even be that all of these exotic possibilities actually apply in the real world. At Fermilab, we are working on experiments including the Dark Energy Survey, the Fermilab Holometer, and the CMS experiment at CERN’s Large Hadron Collider, that probe these ideas in very different ways. The talk will survey what we hope to learn from them. Please visit us at http://aspenphys.org/50th/index.html and join our email list at email@example.com for updates and announcements. The Aspen Center for Physics is supported by the National Science Foundation Grant #1066293.
Free Physics Lecture, “Is Space Real?”
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