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 ?

]]>It has super-position but it has infinite super-position and the state doesn’t collapse when its measured, there is standard data sizes and infinite storage, deep heuristics, faster comparisons and this may bridge the gap to AGI or may be the very model of AGI in a way.

Turns out once you have made the quantum leap which was the hardest part it gets very easy, There is no need for hardware advancements and its even more efficient than normal computing if you stay on the quantum level and have figured out how to realize them efficiently.

A mathematical implementation means 0 noise and 100% accuracy.

What it is, well it comes from a theory called existential Quantum Computing and it is basically the art of working with a cube of spheres mathematically.

The Cube of Spheres is the Quantum Leap of binary on a theoretical level and it is the only quantum leap of binary theoretically so if you not using this you not Quantum you crazy, lost somewhere in the abyss between binary and the real quantum leap, an existentially big abyss Ill have you know I made it through to find this answer.

you can find out more at

http://quantaqb.co.za/existentialquantumcomputing.html

Anyway I am starting to develop this into something very similar to tensor flow and looking for people who are willing to help out. Its the next binary and its going to change the world. When we figure out how to use it better we will discover there are no limits now, any problem will be solvable.

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I am looking for innovation.

what do i know about quantum technology? Not much just that we could time travel. Saw it in Ant-man.

J/k J/k

This project will be fun.

Find me.

]]>I’m either seeing unexpected behavior, or doing something wrong (probably doing something wrong).

If I run the following on Google’s Quantum Playground…

>>>>>>>>>>>>>>>>>>>>>>>>>>>

VectorSize 8

SigmaX 0

Hadamard 0

Hadamard 1

CNot 0,1

Hadamard 0

Hadamard 1

MeasureBit 1

print measured_value

<<<<<<<<<<<<<<<<<<<<<<<<<<<

I expect to see a non-zero measured_value. When I run this in the playground by stepping through the program, the CNot has no affect on the qubit. What am I doing wrong?

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I’m working on a science fiction project that includes an important episode of quantum hacking . I need a slightly more realistic framework in order to fill in the story, and I’m hoping you can help me answer a few questions. I apologize in advance if my questions are elementary to the point of being annoying, but I’m hoping some of you experts can help me out.

Let’s assume there is a spaceship whose navigational decisions are protected by quantum encryption, using a series of optical channels. Based on what I’ve seen and read, including the stuff discussed on Youtube by Vadim Makarov, it would very much be possible to hack such a system and change the outcome.

According to Mr. Makarov (and others, I’m sure), you could fire a pulse into the channel and use back-reflection to built a map of the quantum state without disturbing it. From there, you could manipulate it.

My questions are:

1. How would the hacking computer “connect” to the system’s optical channel? Would a cable have to be coupled to the optical channel, and what would this look like? (My guess is ‘yes’, since photons would have to be injected and collected).

2. Is there a conceivable way for the location of the device to be discovered while said device is in operation? (electricity, I’m sure – but anything else?)

3. How would the device be uncoupled/removed? Would this even matter, if the hacking operation had achieved its desired result? Would you have to cover up the hole you made?

4. What are some rare materials involved in the building of a quantum hacking device?

5. Which components of a quantum hacking device do you think would be most difficult to manufacture?

Any bits of insight you could provide would be very much appreciated! Thanks for taking the time to read my questions.

Best wishes,

arrowhead

p.s. if you know of a better forum or person to ask these questions, please do let me know.

]]>A CNOT gate would only flip 1 of the bits. I need |11> -> |00> purely, without any outside entanglement with a third qbit.

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