CHSH
CHINA SHOE HOLDINGS INC
stock OTC

I am a physicist trying to understand [this paper](https://arxiv.org/abs/2407.21723v1) which suggests a use case for quantum entanglement in the context of high-frequency trading. I can assure you the physics in the paper checks out, but I don't really know anything about HFT, so I can't assess if that part of the paper makes any sense or not. So I'm here to ask the bright minds of r/algorithmictrading for help. Here's the rough summary of the paper: It is a known fact that there are certain cooperation games that can be won more often if the players share quantum entanglement between them. One of these games is called the [CHSH game](https://en.wikipedia.org/wiki/CHSH_inequality#CHSH_game). The authors of this paper claim that a plausible high-frequency trading scenario is actually analogous to the CHSH game, and hence traders in this scenario could benefit from sharing quantum entanglement between them. The scenario is described in section 3 and a bit in section 4 of the paper. Check it out.
* So, is what they describe at all a realistic HFT situation? Even a little bit?
* The paper claims that this scenario rises again and again, on the order of hundreds of thousands of times per second. Is that a reasonable estimate?
* The premise of the scenario is that two trading algorithms on two different exchanges need to be precisely coordinated. Specifically that they need to be coordinated to a precision smaller than the latency between the two exchanges (e.g. the 188 microseconds it takes for light to travel between NYSE and Nasdaq). Is coordination at that level of precision even meaningful? I mean, presumably the two exchanges provide different environments for the algorithms and those two environments aren't themselves coordinated at such small timescales, right? Like I said, I really don't know anything about this stuff.
Anyway, if anyone has any insight into this, or even has a direction to point me in, I'd be eternally grateful.

I am a physicist trying to understand [this paper](https://arxiv.org/abs/2407.21723v1) which suggests a use case for quantum entanglement in the context of high-frequency trading. I can assure you the physics in the paper checks out, but I don't really know anything about HFT, so I can't assess if that part of the paper makes any sense or not. So I'm here to ask the bright minds of r/algorithmictrading for help. Here's the rough summary of the paper: It is a known fact that there are certain cooperation games that can be won more often if the players share quantum entanglement between them. One of these games is called the [CHSH game](https://en.wikipedia.org/wiki/CHSH_inequality#CHSH_game). The authors of this paper claim that a plausible high-frequency trading scenario is actually analogous to the CHSH game, and hence traders in this scenario could benefit from sharing quantum entanglement between them. The scenario is described in section 3 and a bit in section 4 of the paper. Check it out.
* So, is what they describe at all a realistic HFT situation? Even a little bit?
* The paper claims that this scenario rises again and again, on the order of hundreds of thousands of times per second. Is that a reasonable estimate?
* The premise of the scenario is that two trading algorithms on two different exchanges need to be precisely coordinated. Specifically that they need to be coordinated to a precision smaller than the latency between the two exchanges (e.g. the 188 microseconds it takes for light to travel between NYSE and Nasdaq). Is coordination at that level of precision even meaningful? I mean, presumably the two exchanges provide different environments for the algorithms and those two environments aren't themselves coordinated at such small timescales, right? Like I said, I really don't know anything about this stuff.
Anyway, if anyone has any insight into this, or even has a direction to point me in, I'd be eternally grateful.