A pendulum prepared perfectly inverted and motionless is a prototype of unstable equilibrium and corresponds to an unstable hyperbolic fixed point in the dynamical phase space. Here, we measure the ...
A collision between relativistic ions will sometimes, if the temperatures/energies of the particles are high enough, create a temporary state known as a quark-gluon plasma: where even individual ...
It was established early on that equilibrium states corresponding to a known temperature can be effectively captured using the framework of quantum statistical mechanics. Intuitively less clear, ...