Quantum Physics

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4 domain-specific abstractions whose origin domain is Quantum Physics.

• Energy Level Splitting — Resolve one degenerate quantum energy into two or more distinct eigenvalues by changing the Hamiltonian so that its action within the degenerate subspace is not proportional to the identity.
• Liouville Space — The Hilbert space of Hilbert–Schmidt operators on a quantum Hilbert space, in which density operators are vectors and quantum evolutions act as superoperators.
• Quantum jump — An abrupt transition of a quantum system between discrete states, observed through a sudden change in emitted, absorbed or monitored signal.
• Reduced Dynamics — The effective evolution of an open quantum subsystem obtained by evolving system and environment jointly and tracing out the environment, yielding a reduced-state trajectory and, when preparation assumptions permit, a dynamical map on system states.