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cold atoms
Trends
- 1
Physicists report a tabletop experiment using ultracold atoms to simulate the creation of particles, mimicking processes normally associated with quantum fields in extreme environments such as the early universe. By controlling atoms cooled to near absolute zero, researchers can reproduce conditions where quantum fluctuations turn into real excitations. The work, published by the American Physical Society, offers a new way to test fundamental physics that is otherwise out of reach of direct experiments.
- 2Korean War veteran who took part in atomic bomb tests joins Honor Flight▼Korean War veteran who participated in atomic bomb testing prepares for Honor Flight
A Las Vegas-area Korean War veteran who participated in atomic bomb testing is preparing to travel on an Honor Flight, a program that flies veterans to Washington, D.C. to visit the memorials dedicated to their service. The veteran is one of the last living witnesses of Cold War-era nuclear testing, drawing attention to the sacrifices of test participants.
- 3UN Chief Warns of Most Dangerous Nuclear Moment Since Cold War●At ‘Most Dangerous Nuclear Moment’ Since Cold War Ended, Secretary-General Observance Message Urges Changing Course, Replacing Threats with Dialogue
UN Secretary-General Antonio Guterres marked a nuclear disarmament observance with a stark message, calling the present the most dangerous nuclear moment since the Cold War ended. He urged world powers to change course, replacing nuclear threats and saber-rattling with dialogue and diplomacy, warning that rising tensions have brought atomic risks back to levels not seen in decades.