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Articles by Alex Lupsasca
Are we living in a black hole? Original
Gazing up at the stars at night, it’s easy to imagine that space goes on forever. But cosmologists know that the universe actually has limits. First, their best models indicate that space and time had a beginning, a subatomic point called a singularity. This point of intense heat and density rapidly ballooned outward during the big bang.
Alex Lupsasca wins New Horizons in Physics Prize from the Breakthrough Prize Foundation
Assistant Professor of Physics and Mathematics Alex Lupsasca has won a 2024 New Horizons in Physics Prize for his theoretical work on the interpretation of black hole images and his proposal of a new method for using super-powered telescopes to look closely at black holes and their invisible fingerprints called photon rings. The New Horizons Prize recognizes early-career physicists and mathematicians who are making strides in their research fields.
Black Holes Will Destroy All Quantum States, Researchers Argue | Quanta Magazine
At Princeton University in the early 1970s, the celebrated theoretical physicist John Wheeler could be spotted in seminars or impromptu hallway discussions drawing a big “U.” The letter’s left tip represented the beginning of the universe, where everything was uncertain and all quantum possibilities were happening at the same time. The letter’s right tip, sometimes adorned with an eye, depicted an observer looking back in time, thus bringing the left side of the U into existence.
Black Hole’s Ring of Light Could Encrypt Its Inner Secrets | Quanta Magazine
Introduction When photons hurtle toward a black hole, most are sucked into its depths, never to return, or gently deflected away. A rare few, however, skirt the hole, making a series of abrupt U-turns. Some of these photons keep circling the black hole practically forever. Described by astrophysicists as a “cosmic movie camera” and an “infinite light trap,” the resulting ring of orbiting photons is among the weirdest phenomena in nature.
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