I am a quantitative developer that has worked extensively within HFT and now constrained by deterministic machines which are not likely to get a lot faster. HFT has now developed into a level playing field for its participants and gaining an alpha edge is now considerably difficult.

Using a probabilistic device like a quantum computer network could allow for the re-instatement of HFT strategies that execute at superluminal speeds and not constrained by Einsteins theory of relativity, but use principals of quantum mechanics.

]]>They are not constrained to stepwise calculations but, rather, can compute a vast number of possible solutions simultaneously—and at a speed that is far beyond anything we can imagine.

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Isn’t this wrong? AFAIK quantum computers **cannot** compute a vast number of possible solutions simultaneously. **A Quantum Computer is not a parallel computer**. It is true that the wave function will exist in a superposition of states before measurement, but when we make a measurement it will collapse to a definite state. And measurements is all we can do.

From scott aaronson’s blog (https://www.scottaaronson.com/blog/)

*If you take just one piece of information from this blog:
Quantum computers would not solve hard search problems
instantaneously by simply trying all the possible solutions at once.*

curious to know what other experts think

]]>I did not see anything on this site about that so I wanted to open a discussion and see if anyone had information on how Quantum Computers could be used to do this since it can take in to account an enormous amount of input (driver’s start time, start location, hour left to work, distance from customer, weather, traffic, average performance of the driver as well as historical data) to predict an outcome. The best part is not only the ability to calculate this quickly but Quantum Computers could be used to explore all scenarios simultaneously.

So, I welcome everyone to discuss and share any resources you may have on the topic. It may be best t steer away from complicated algorithms or mathematical calculations. Sharing conceptual ideas or simple formulas would be more appealing to a larger audience.

What I have learned is that D-Wave computers are specifically written to perform optimization tasks so they appeal to Enterprises like the larger Fortune 500 company that I work for.

Here’s a website which seems to be geared towards this specific topic in Quantum Computing: https://www.mjc2.com/quantum-computing-logistics-manufacturing-optimization.htm

]]>I’m prepared exploring Quantum Computing which is completely new to me. Searching a while on Internet, I found IBM Qiskit which is an Open Source software necessitated for Quantum Computing.

Also I found following documentation;

1) Hello Quantum: Taking your first steps into quantum computation https://medium.com/qiskit/hello-quantum-2c1c00fe830c

2) Installing Qiskit https://qiskit.org/documentation/install.html

3) Coding with Qiskit https://www.youtube.com/playlist?list=PLOFEBzvs-Vvp2xg9-POLJhQwtVktlYGbY

4) Qiskit 0.12 https://qiskit.org/documentation/release_notes.html#notable-changes

5) Qiskit API documentation https://qiskit.org/documentation/

6) Qiskit IQX Tutorials https://github.com/Qiskit/qiskit-iqx-tutorials

Before start I expect to know whether I need a Quantum Computer for my exploration? Or a classic computer, a desktop PC, can do the job? Please shed me some light? Thanks in advance.

Best Regards

satimis

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|Φ+⟩ = 1/√2 (|00⟩ + |11⟩)

**Reference: Dense Coding Topic QUANTUM COMPUTING From Linear Algebra to Physical Realizations Mikio Nakahara**

**Q1) What are the individual qubits received by Alice and Bob? **

**Q2) If Alice wants to send her first Qubit to Charles then is it possible to send her individual qubit? (or is it required to send complete |Φ+⟩?)**

Here A is the 1st-qubit while B is the 2nd-qubit. And, both A and B are free to measure their own qubit with the following measurement settings

A measures with [|0⟩,|1⟩] or [|+⟩,|−⟩]

B measures with [sin(3π/8)|0⟩+cos(3π/8)|1⟩,−sin(π/8)|0⟩+cos(π/8)|1⟩] or [sin(π/8)|0⟩+cos(π/8)|1⟩,−sin(3π/8)|0⟩+cos(3π/8)|1⟩]

$[sin(\pi /8)|0\u27e9+cos(\pi /8)|1\u27e9,-sin(3\pi /8)|0\u27e9+cos(3\pi /8)|1\u27e9]$So, let Ψ=(|00⟩+|11⟩)/√2

How do I calculate the expectation value, if A measures in

$[|0\u27e9,|1\u27e9]$basis and b measures in [sin(3π/8)|0⟩+cos(3π/8)|1⟩,−sin(π/8)|0⟩+cos(π/8)|1⟩] basis?

I know that expectation value is in this format E=<Ψ|x|Ψ> , I would like to know what should be in place of x and how to find it ?

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