# Disentangling the Quantum World

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## Abstract

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## 1. Strange Connections

## 2. The Parisian Zigzag

For me it is so reasonable to assume that the photons in those experiments carry with them programs [i.e., “hidden instructions”], which have been correlated in advance, telling them how to behave. This is so rational that I think that when Einstein saw that, and the others refused to see it, he was the rational man. The other people, although history has justified them, were burying their heads in the sand … So for me, it is a pity that Einstein’s idea doesn’t work. The reasonable thing just doesn’t work.— J. S. Bell [6]

## 3. Alice Through the Looking Glass

#### 3.1. Polarizing Cubes

#### 3.2. Into the Mirror

#### 3.3. The One-Photon Experiment

#### 3.4. Backing out of the Mirror

#### 3.5. Too Good to Be True?

- If Alice can control τ over on Bob’s side of the experiment, why can’t she send a signal to him? It is well-known that QM does not allow signaling in the kind of experiment depicted in Figure 1, and we might therefore suspect that this zigzag connection would be incompatible with standard QM. (Typical causal channels can be used to signal, after all.)
- Why is Alice allowed to influence τ, when Bob seems to do no such thing? (Discrimination against experimenters on the right!)
- Isn’t the zigzag model just another version of the discredited “superdeterminist” proposal?

## 4. Causation without Signaling

#### 4.1. Can Ecila Signal?

#### 4.2. No Signaling, with Mirrors

#### 4.3. Generalized No-Signaling?

## 5. What about Bob?

## 6. Isn’t This Just “Superdeterminism”?

A respectable class of theories, including contemporary quantum theory as it is practiced, have “free” “external” variables in addition to those internal to and conditioned by the theory. These variables … provide a point of leverage for “free willed experimenters”, if reference to such hypothetical metaphysical entities is permitted. I am inclined to pay particular attention to theories of this kind, which seem to me most simply related to our everyday way of looking at the world.— J. S. Bell [22]

## 7. Entanglement without Spooks

## Acknowledgments

## Author Contributions

## Conflicts of Interest

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Price, H.; Wharton, K. Disentangling the Quantum World. *Entropy* **2015**, *17*, 7752-7767.
https://doi.org/10.3390/e17117752

**AMA Style**

Price H, Wharton K. Disentangling the Quantum World. *Entropy*. 2015; 17(11):7752-7767.
https://doi.org/10.3390/e17117752

**Chicago/Turabian Style**

Price, Huw, and Ken Wharton. 2015. "Disentangling the Quantum World" *Entropy* 17, no. 11: 7752-7767.
https://doi.org/10.3390/e17117752