TY - JOUR
T1 - Cosmic bubble collisions
AU - Kleban, Matthew
PY - 2011/10/21
Y1 - 2011/10/21
N2 - I briefly review the physics of cosmic bubble collisions in false-vacuum eternal inflation. My purpose is to provide an introduction to the subject for readers unfamiliar with it, focussing on recent work related to the prospects for observing the effects of bubble collisions in cosmology. I will attempt to explain the essential physical points as simply and concisely as possible, leaving most technical details to the references. I make no attempt to be comprehensive or complete. I also present a new solution to Einstein's equations that represents a bubble universe after a collision, containing vacuum energy and ingoing null radiation with an arbitrary density profile.
AB - I briefly review the physics of cosmic bubble collisions in false-vacuum eternal inflation. My purpose is to provide an introduction to the subject for readers unfamiliar with it, focussing on recent work related to the prospects for observing the effects of bubble collisions in cosmology. I will attempt to explain the essential physical points as simply and concisely as possible, leaving most technical details to the references. I make no attempt to be comprehensive or complete. I also present a new solution to Einstein's equations that represents a bubble universe after a collision, containing vacuum energy and ingoing null radiation with an arbitrary density profile.
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U2 - 10.1088/0264-9381/28/20/204008
DO - 10.1088/0264-9381/28/20/204008
M3 - Review article
AN - SCOPUS:80053947781
SN - 0264-9381
VL - 28
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
IS - 20
M1 - 204008
ER -