How Cold Reaches Its Extreme in Physics: Exploring the Ultracold Quantum World
In everyday use, cold simply means low temperature. In physics, however, cold has a sharply defined and extraordinary limit. The coldest temperature possible is absolute zero, measured as –273.15°C, where atomic motion is reduced to its minimum allowed by nature. Modern experiments now routinely approach this boundary, cooling matter to billionths of a degree above absolute zero and revealing a realm governed entirely by quantum mechanics.
Month: Current Affairs - January 15, 2026
Category: Physics, Quantum Technology