trace preserving
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Trace fossil — Chirotherium footprints in a Triassic sandstone … Wikipedia
Partial trace — In linear algebra and functional analysis, the partial trace is a generalization of the trace. Whereas the trace is a scalar valued function on operators, the partial trace is an operator valued function. The partial trace has applications in… … Wikipedia
Quantum logic — In mathematical physics and quantum mechanics, quantum logic is a set of rules for reasoning about propositions which takes the principles of quantum theory into account. This research area and its name originated in the 1936 paper by Garrett… … Wikipedia
Quantum channel — In quantum information theory, a quantum channel is a communication channel which can transmit quantum information, as well as classical information. An example of quantum information is the state of a qubit. An example of classical information… … Wikipedia
Decoherence-free subspaces — A decoherence free subspace (DFS) is a subspace of a system s Hilbert space that is invariant to non unitary dynamics. Alternatively stated, they are a small section of the system Hilbert space where the system is decoupled from the environment… … Wikipedia
Quantum operation — In quantum mechanics, a quantum operation is a mathematical formalism used to describe a broad class of transformations that a quantum mechanical system can undergo. This formalism describes not only time evolution or symmetry transformations of… … Wikipedia
Lindblad equation — In quantum mechanics, the Lindblad equation or master equation in the Lindblad form is the most general type of markovian master equation describing non unitary (dissipative) evolution of the density matrix ho that is trace preserving and… … Wikipedia
Quantum Markov chain — In mathematics, the quantum Markov chain is a reformulation of the ideas of a classical Markov chain, replacing the classical definitions of probability with quantum probability. Very roughly, the theory of a quantum Markov chain resembles that… … Wikipedia
Quantum instrument — A quantum instrument is a quantum operation with both classical and quantum outputs.It combines the concepts of measurement and quantum operation.Usually it is implemented as a weighted collection of completely positive maps the sum of which is… … Wikipedia
Möbius transformation — Not to be confused with Möbius transform or Möbius function. In geometry, a Möbius transformation of the plane is a rational function of the form of one complex variable z; here the coefficients a, b, c, d are complex numbers satisfying ad − … Wikipedia
Monitoring and Measurement in the Next Generation Technologies — (MOMENT) is a project aimed at integrating different platforms for network monitoring and measurement to develop a common and open pan European infrastructure. The system will include both passive and active monitoring and measurement techniques… … Wikipedia
