Wavefunction collapse, nonlocality and preferred Lorentz frame

[Quantum Speculations]

In this paper, we first give a new proof of nonlocality in standard quantum mechanics based on the possibility of superluminal signaling. Next, we argue that the new proof may also imply that quantum nonlocality requires the existence of a preferred Lorentz frame. Thirdly, we give a few arguments for the detectability of the frame, and illustrate how the frame can be detected by measuring the collapse time of the wave function in a recent model of energy-conserved wavefunction collapse. Lastly, we also introduce and discuss a possible mechanism of superluminal signaling.

[Author]

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