On 06 Dec 2014, at 12:59, Richard Ruquist wrote:


On Sat, Dec 6, 2014 at 3:19 AM, Bruno Marchal <[email protected]> wrote:

On 05 Dec 2014, at 20:04, Richard Ruquist wrote:

What I want to know is if anyone takes conservation of energy seriously?

Yes. Quantum mechanics without collapse does not violate the conservation of energy. You just cannot sum up the energy in the different branch of the superposition. If you do, just the two slits experiment would violate energy conservation, but the math shows otherwise. Similarly thanks to the quantization modal principle which is a theorem in the material modalities (hypostases) we have good reason that the physics extracted from comp will conserve energy, and the probabilities.


Please explain how you cannot sum all the energies in each branch.

Because QM's equation allows only interference between the branch, not physical interaction. You can formally add the energy of course, but that sum of energy is not available in any branches. According to Weinberg, that would be the case if the SWE was slightly delinearize. Strict linearity avoids all physical or observable mixture of the components of the universal wave, making such a sum of energy in different branches of the wave non physical. An hydrogen atom with an electron in a superposed state of two level of energy has not an energy being the sum of the two energies. You don't need that sum of energy to put the electron is such a state. the superposition of the incoming photon will be enough.
I might think of a more formal treatment of this.

Bruno




Richard

Bruno





On Fri, Dec 5, 2014 at 1:49 PM, meekerdb <[email protected]> wrote:
On 12/5/2014 8:20 AM, Telmo Menezes wrote:


On Fri, Dec 5, 2014 at 8:06 AM, meekerdb <[email protected]> wrote:
On 12/4/2014 8:05 PM, LizR wrote:
I suspect that Bruno is differentiating physical existence from primary existence.

What's the difference? Isn't physical existence the paradigmatic case? the example we point to when asked to define "exits"?

Not wanting to bypass Bruno's more sophisticated explanations, I tend to equate "physical existence" with the idea of something existing independently of an observer. Or, to put it another way, taking 3p reality seriously. No?

Sure. Does anyone not take it seriously - I mean anyone outside a mental hospital?

Brent

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http://iridia.ulb.ac.be/~marchal/




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