full image - Repost: Can we represent Universe as a gigantic entagled network? (from Reddit.com, Can we represent Universe as a gigantic entagled network?)
Mining:
Exchanges:
Donations:
Let's consider a thought experiment and imagine the universe consisting of only two particles. int this closed system both particles have never interacted with each other and both exist in a pure superposition. Now imagine that these two particles collided (interacted), which means each particle "measured" the state of the other one, and thus the information about each particle is now spread in between, manifesting as one wave function: ∣Ψ⟩=α∣00⟩+β∣11⟩Now lets add to this imaginary universe one more particle C, and considering its interaction with either A or B, leads to an expanded state representation: ∣Ψ3⟩=α∣000⟩+β∣111⟩+γ∣001⟩+δ∣010⟩+… This more complex wave function in a higher-dimensional complex Hilbert space illustrates how quantum information about each particle's state is spread across the system, highlighting the nature of decoherence as the entanglement of a system with additional particles or as we can call it "environment".We keep adding more and more particles to this closed system until they reach the number 10^80 particles (the same number as in the observable universe). So for a universe with N=10^80 particles, we conceptualize the state of the universe as ∣Ψuniverse⟩=∑i=0, 2^10^80−1 ci∣si⟩ This universal wave function, residing in an unimaginably large complex Hilbert space, encapsulates the quantum states and entanglements of all particles in the universe, proposing a view of the universe as an interconnected quantum network.So if such an approach is correct, can we state the universe is an entangled network of particles (or as per QFT - fields). If yes, then two implications occur:Given this universal entanglement, the entanglement entropy between any two particles can never be zero (just like temperature is never actually 0 Kelvin).Universe exist in a complex Hilbert space? This approach implies that the universe's existence is fundamentally quantum, characterized by a wave function in a complex Hilbert space, rather than situated in classical, real space.Please let me know if this approach is correct, or if I have missed something.Thank you!
Social Media Icons