I What does this tricky quantum mechanics equation mean?

Ali Beladi
Messages
2
Reaction score
0
I'm a current high school student and I’m aspiring to become a biochemist. I’m at the moment writing an article about adaptive mutations but there is a lot of tricky quantum mechanics in it which I simply don't get. I have asked everyone and got no answer until someone recommended to ask it in a forum. I would more than grateful if someone could actually explain to me what on Earth is going on in the diagram I have shown below. Here is also a link to the article if you want extra context or just give it a read because it is very interesting:https://www.academia.edu/13243691/A_quantum_mechanical_model_of_adaptive_mutation
1610275225600.png
 
Physics news on Phys.org
@Ali Beladi I'm too zaly to even type correctly ##-## I think that you're right to wonder ##-## I think that biochemical consequences of quantum decoherence may be a lot to try to digest all at once.
 
  • Like
Likes Ali Beladi
If you read the equations' symbols as if they were labels for "classically" or "common sensically" existing things, the equations would somewhat make sense. For example 'His" and "Arg" make sense classically, and something is either "His" or "Arg". However, in the quantum mechanical notation ##|\text{His} \rangle + |\text{Arg} \rangle##, it refers to something which is a superposition of "His" and "Arg", which is not possible classically. I think it goes without saying that the idea in the paper is quite speculative. However, for simpler things such as the chirality of sugars or ammonia, there is quite mainstream speculation that decoherence plays a role in explaining it (see section 2.2 of Zeh's article):

https://arxiv.org/abs/quant-ph/9905004
The Meaning of Decoherence
H. D. Zeh
 
  • Like
Likes vanhees71, Demystifier, EPR and 1 other person
atyy said:
If you read the equations' symbols as if they were labels for "classically" or "common sensically" existing things, the equations would somewhat make sense. For example 'His" and "Arg" make sense classically, and something is either "His" or "Arg". However, in the quantum mechanical notation ##|\text{His} \rangle + |\text{Arg} \rangle##, it refers to something which is a superposition of "His" and "Arg", which is not possible classically. I think it goes without saying that the idea in the paper is quite speculative. However, for simpler things such as the chirality of sugars or ammonia, there is quite mainstream speculation that decoherence plays a role in explaining it (see section 2.2 of Zeh's article):

https://arxiv.org/abs/quant-ph/9905004
The Meaning of Decoherence
H. D. Zeh
Thanks A lot
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...

Similar threads

Back
Top