Quantum Cell Phones - Investigating the Possibilities

Willis666
Messages
48
Reaction score
0
Quantum "Cell Phones?"

Earlier today, I was thinking, what if we could use Quantum mechanics to have lighting fast cell phone access? How it could work is you could have one particle in the Cell Phone tower (which could now be just a room.) That was entangled with the particle in your cell phone. Then, when you get a call, the callers particle vibrates, rotates, etc. in a way that tells the cell phone tower to move your cell phones particle in such a way that then moves the particle in your cell phone. You cell phone picks up the movement, you can answer it, and go on with your conversation (there could be some sort of system where if a particle moves one way, its a 1, and if it moves another way, its a 0, and use a binary system.)

I've been thinking about this all day, and now that it's on paper, I can see its flaws.
 
Physics news on Phys.org


Willis666 said:
Earlier today, I was thinking, what if we could use Quantum mechanics to have lighting fast cell phone access? How it could work is you could have one particle in the Cell Phone tower (which could now be just a room.) That was entangled with the particle in your cell phone. Then, when you get a call, the callers particle vibrates, rotates, etc. in a way that tells the cell phone tower to move your cell phones particle in such a way that then moves the particle in your cell phone. You cell phone picks up the movement, you can answer it, and go on with your conversation (there could be some sort of system where if a particle moves one way, its a 1, and if it moves another way, its a 0, and use a binary system.)

I've been thinking about this all day, and now that it's on paper, I can see its flaws.

It's most basic flaw is that it presumes that information can be sent via entangled pairs, which it cannot.
 


What phinds said.

Not to mention that coherent states very rapidly decohere in the environment. Any entanglement wouldn't last long enough to be useful.
 


Okay thanks. I was wondering why I never heard anything about it, through my understanding at the time, It seemed kind of obvious.
 
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...
Back
Top