👉 Un Ultraconservative is a concept in quantum mechanics that refers to a state of matter where all particles are at absolute zero temperature. This concept was proposed by physicist Paul Dirac and has been experimentally confirmed for certain types of superconductors, such as cuprates. In this state, the electrons are so tightly bound together that they cannot move or vibrate in any direction without breaking up into their constituent particles, which in turn can only exist at absolute zero temperature. This is a theoretical concept
