Tag

Energy Absorption

All articles tagged with #energy absorption

physics-and-chemistry1 month ago•16 min saved

New Theory Reveals Why a Quantum Gas Keeps Its Cool Under Energy Kicks

Physicists have built a theoretical framework linking interparticle interaction strength to the momentum-kick amplitude in a strongly interacting one-dimensional quantum gas, showing a critical regime where external energy stops being absorbed due to dynamical localization. The model explains why the gas resists heating, suggests the mechanism may apply to other quantum systems, and sets the stage for future experimental tests to explore finite-size and thermodynamic-limit behavior.

via Gizmodo|

#dynamical-localization #energy-absorption #many-body-physics

science-and-technology3 years ago•2 min saved

"New Mechanical Metamaterials Absorb Ultra-High Energy"

Chinese researchers have used ion track technology to fabricate a new type of quasi-body centered cubic (quasi-BCC) beam nanolattice mechanical metamaterial with a record low beam diameter of 34 nm. The gold and copper quasi-BCC beam nanolattices have excellent energy absorption capacity and compressive strength, with the copper quasi-BCC beam nanolattice exceeding the previously reported beam nanolattice. The extraordinary mechanical properties are mainly due to the synergistic effect of size effects, quasi-BCC geometry, and good ductility of metals.

via Phys.org|

#chinese-academy-of-sciences #energy-absorption #ion-track-technology