The ‘unromantic pictures’ of quantum theory

  title={The ‘unromantic pictures’ of quantum theory},
  author={Roderich Tumulka},
  journal={Journal of Physics A},
  • R. Tumulka
  • Published 18 July 2006
  • Physics
  • Journal of Physics A
I am concerned with two views of quantum mechanics that John S Bell called 'unromantic': spontaneous wavefunction collapse and Bohmian mechanics. I discuss some of their merits and report about recent progress concerning extensions to quantum field theory and relativity. In the last section, I speculate about an extension of Bohmian mechanics to quantum gravity. 
Some of the papers collected in this volume were fi rst presented in draft outline at a workshop that I organised at Complutense Universi ty in Madrid in October 2006. This was the second workshop
What you always wanted to know about Bohmian mechanics but were afraid to ask
Bohmian mechanics is an alternative interpretation of quantum mechanics. We outline the main characteristics of its non-relativistic formulation. Most notably it does provide a simple solution to the
The Ghirardi–Rimini–Weber (GRW) theory is a physical theory that, when combined with a suitable ontology, provides an explanation of quantum mechanics. The so-called collapse of the wave function is
Relativistic Constraints on Interpretations of Quantum Mechanics
  • W. Myrvold
  • Physics, Philosophy
    The Routledge Companion to Philosophy of Physics
  • 2021
5 Additional-Beables Theories 6 5.1 De Broglie-Bohm theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5.1.1 Causal structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electron Charge Density: A Clue from Quantum Chemistry for Quantum Foundations
Within quantum chemistry, the electron clouds that surround nuclei in atoms and molecules are sometimes treated as clouds of probability and sometimes as clouds of charge. These two roles, tracing
A Dynamic Histories Interpretation of Quantum Theory
The problem of how to interpret quantum mechanics has persisted for a century. The disconnect between the wavefunction state vector and what is observed in experimental apparati has had no shortage
The effect of time-dilation on Bell experiments in the retrocausal Brans model
The possibility of using retrocausality to obtain a fundamentally relativistic account of the Bell correlations has gained increasing recognition in recent years. It is not known, however, the extent
Foundations of Statistical Mechanics and the Status of the Born Rule in de Broglie-Bohm Pilot-Wave Theory
We compare and contrast two distinct approaches to understanding the Born rule in de Broglie-Bohm pilot-wave theory, one based on dynamical relaxation over time (advocated by this author and
Ontology for Relativistic Collapse Theories
If some sort of dynamical collapse theory is correct, what might the world be like? Can a theory of that sort be a quantum state monist theory, or must such theories supplement the quantum state
Bohmian mechanics at space–time singularities. I. Timelike singularities
  • R. Tumulka
  • Physics, Mathematics
    Journal of Geometry and Physics
  • 2019


On the Common Structure of Bohmian Mechanics and the Ghirardi–Rimini–Weber Theory
Bohmian mechanics and the Ghirardi–Rimini–Weber theory provide opposite resolutions of the quantum measurement problem: the former postulates additional variables (the particle positions) besides the
A Relativistic Version of the Ghirardi–Rimini–Weber Model
Carrying out a research program outlined by John S. Bell in 1987, we arrive at a relativistic version of the Ghirardi-Rimini-Weber (GRW) model of spontaneous wavefunction collapse. The GRW model was
Bell-type quantum field theories
In his paper (1986 Beables for quantum field theory Phys. Rep. 137 49?54) John S Bell proposed how to associate particle trajectories with a lattice quantum field theory, yielding what can be
Quantum field theory of without observers
The Undivided Universe
Spontaneous Collapse Models on a Lattice
We present spontaneous collapse models of field theories on a 1+1 null lattice, in which the causal structure of the lattice plays a central role. Issues such as “locality,” “nonlocality,” and
On the Problem of Hidden Variables in Quantum Mechanics
The demonstrations of von Neumann and others, that quantum mechanics does not permit a hidden variable interpretation, are reconsidered. It is shown that their essential axioms are unreasonable. It
'Quantum Jumps' and Indistinguishability
Ghirardi, Rimini and Weber have presented a statistical modification of non-relativistic quantum mechanics which unifies the description of microscopic and macroscopic systems of distinct particles.
Describing the macroscopic world: Closing the circle within the dynamical reduction program
With reference to recently proposed theoretical models accounting for reduction in terms of a unified dynamics governing all physical processes, we analyze the problem of working out a worldview