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easuring a quantum state causes it to interact
with the environment and jump to a particular outcome. This leads to
some of the stranger results in quantum theory. This book is a
well-written and up to date account of recent theoretical developments
in this exciting aspect of quantum physics by leading researchers in
the field. Decoherence, superposition, and wavefunction collapse are
described in terms of Schrodinger equations with a brief section on the
Wigner function. Other chapters discuss implications for quantum gravity,
field theory, and superselection rules and symmetries.
