# Unitary-Only Quantum Theory Cannot Consistently Describe the Use of Itself: On the Frauchiger-Renner Paradox

@article{Kastner2020UnitaryOnlyQT, title={Unitary-Only Quantum Theory Cannot Consistently Describe the Use of Itself: On the Frauchiger-Renner Paradox}, author={Ruth E. Kastner}, journal={arXiv: Quantum Physics}, year={2020} }

The Frauchiger-Renner Paradox is an extension of paradoxes based on the 'Problem of Measurement,' such as Schrodinger's Cat and Wigner's Friend. All of these paradoxes stem from assuming that quantum theory has only unitary (linear) physical dynamics, and the attendant ambiguity about what counts as a 'measurement'--i.e., the inability to account for the observation of determinate measurement outcomes from within the theory itself. This paper discusses a basic inconsistency arising in the FR… CONTINUE READING

#### Citations

##### Publications citing this paper.

## The Self-Simulation Hypothesis Interpretation of Quantum Mechanics

VIEW 1 EXCERPT

CITES BACKGROUND

#### References

##### Publications referenced by this paper.

SHOWING 1-10 OF 49 REFERENCES

## Single-World Theory of the Extended Wigner’s Friend Experiment

VIEW 8 EXCERPTS

HIGHLY INFLUENTIAL

## The Possibilist Transactional Interpretation and Relativity

VIEW 4 EXCERPTS

## What is orthodox quantum mechanics

VIEW 3 EXCERPTS

HIGHLY INFLUENTIAL

## Decoherence and the Transactional Interpretation.

VIEW 2 EXCERPTS

## Decoherence and the Transactional Interpretation," preprint: https://www.ijqf.org/archives/5842

VIEW 2 EXCERPTS

## Inadequacy of modal logic in quantum settings

VIEW 1 EXCERPT