The quantum Zeno effect is often studied and understood in term of nonunitary evolutions, involving projections a la von Neumann (measurements). We propose a dynamical explanation of this effect, which involves only unitary operators. The limits of infinitely frequent measurements is critically discussed: it is unphysical, yet interesting and peculiar.
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Univ Florence, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Firenze, ItalyUniv Florence, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Firenze, Italy
Do, H., V
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Gessner, M.
Cataliotti, F. S.
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Univ Florence, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Firenze, Italy
QSTAR, Largo Enrico Fermi 2, I-50125 Florence, Italy
CNR INO, Largo Enrico Fermi 2, I-50125 Florence, Italy
Univ Florence, Dept Phys & Astron, Via G Sansone 1, I-50019 Sesto Fiorentino, ItalyUniv Florence, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Firenze, Italy
Cataliotti, F. S.
Smerzi, A.
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h-index: 0
机构:
Univ Florence, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Firenze, Italy
QSTAR, Largo Enrico Fermi 2, I-50125 Florence, Italy
CNR INO, Largo Enrico Fermi 2, I-50125 Florence, ItalyUniv Florence, European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Firenze, Italy