Instant Quantum Communicator: Does Time Dilation Affect Voice?

[KaiEris]

Let’s say I create two hypothetical quantum entanglement based network devices, A and B, which means communication between A and B is instantaneous. It works like a walkie talkie in that I talk into A and you can hear my voice in B, and vice versa.Now. I take device B with me on a spaceship and blast off traveling away from Earth at close to light speed whilst talking to the love of my life back home in Australia who has device A. Given time dilation does my voice (B) slow down on the receiving end (A) because I am ageing slower or does it sound normal because communication is instantaneous?

 

[Mentz114]

Let’s say I create two hypothetical quantum entanglement based network devices, A and B, which means communication between A and B is instantaneous. It works like a walkie talkie in that I talk into A and you can hear my voice in B, and vice versa.Now. I take device B with me on a spaceship and blast off traveling away from Earth at close to light speed whilst talking to the love of my life back home in Australia who has device A. Given time dilation does my voice (B) slow down on the receiving end (A) because I am ageing slower or does it sound normal because communication is instantaneous?

You cannot , even hypothetically, use entanglement for instantaneous communication.

There are at least several threads in this forum where this is discussed.

 

[DrClaude]

Let’s say I create two hypothetical quantum entanglement based network devices, A and B, which means communication between A and B is instantaneous. It works like a walkie talkie in that I talk into A and you can hear my voice in B, and vice versa.

Quantum entanglement cannot be used for communicating. There is nothing Alice or Bob can do with their half of an entangled pair of particles that could even tell them if the particles were entangled to start with. A classical communication channel is necessary for Alice and Bob to exchange information.

 

[KaiEris]

Quantum entanglement cannot be used for communicating. There is nothing Alice or Bob can do with their half of an entangled pair of particles that could even tell them if the particles were entangled to start with. A classical communication channel is necessary for Alice and Bob to exchange information.

Ok. So how about if the comms was based on https://www.ncbi.nlm.nih.gov/m/pubmed/23679694/ something like this?

 

[DrClaude]

Quantum communication does not involve instant communication. As I said, classical communication is always necessary.

See the recent technology review: https://www.technologyreview.com/s/612964/what-is-quantum-communications/