*Absolute zero* is the coldest temperature that can ever be imagined, set at **−273.15 °C** (or **0 Kelvin**). At this temperature all physical particles, like [[Atom|atoms]], would be at rest: they would not move at all. In other words, there is no way to take any more heat or [[Energy|energy]] away from them. Scientists have never quite reached absolute zero, but they’ve gotten extremely close. It’s a fundamental limit rather than an everyday temperature. In laboratories around the world, quantum systems are nowadays routinely cooled down to temperatures just above absolute zero, which allows scientists to explore intriguing quantum properties like [[Bose Einstein Condensation|Bose Einstein condensation]]. >[!read]- Further Reading >- [[Statistical Mechanics]] >- [[Thermodynamics]] >- [[Classical Physics]] >[!ref]- References