Wave-functional formulation of dissipative CSL models
Source: Originally published on arXiv quant-ph on July 29, 2026.
arXiv:2607.24853v1 Announce Type: new Abstract: We formulate minimal and dissipative Continuous Spontaneous Localization (CSL) dynamics in the functional Schr"odinger representation for a non-relativistic bosonic field. In this framework, the Fock-space state is encoded in a wave functional, and fixed particle-number wave functions are obtained by sector projection. For the minimal CSL coupling to the smeared mass density, this projection gives the standard nonlinear stochastic dynamics in each (N)-particle sector, with the collapse operator acting on the total smeared density of the configuration. This makes the amplification mechanism transparent and allows us to discuss sector superpositions, local probability balance, and the status of Bohmian equivariance at the wave-function level...
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