Measurement and collapse within the two-state vector formalism

Yakir Aharonov, Eliahu Cohen*, Eyal Gruss, Tomer Landsberger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The notion of collapse is discussed and refined within the two-state vector formalism (TSVF). We show how a definite result of a measurement can be fully determined when considering specific forward- and backward-evolving quantum states. Moreover, we show how macroscopic time reversibility is attained, at the level of a single branch of the wavefunction, when several conditions regarding the final state and dynamics are met, a property for which we coin the term “classical robustness under time-reversal”. These entail a renewed perspective on the measurement problem, the Born rule and the many-worlds interpretation.

Original languageEnglish
Pages (from-to)133-146
Number of pages14
JournalQuantum Studies: Mathematics and Foundations
Issue number1-2
StatePublished - 1 Sep 2014


FundersFunder number
Israel Science Foundation1125/10


    • Collapse
    • Decoherence
    • Measurement problem
    • TSVF
    • Time reversal


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