M. Stern

Member for 5 years, 8 months
Last seen this week

Germany

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quantum-gate

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26

If all quantum gates must be unitary, what about measurement?

Mar 15, 2018

22

Is error correction necessary?

Mar 14, 2018

12

Unentangling a qubit from a system: can we convert $\alpha|000\rangle+\beta|111\rangle$ into $\alpha|00\rangle+\beta|11\rangle$?

Jan 26, 2020

11

What is the quantum circuit equivalent of a (delayed choice) quantum eraser?

Apr 2, 2018

9

How to compactly represent multiple qubit states?

Mar 17, 2018

Questions

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24

Which quantum error correction code has the highest threshold (as proven at the time of writing this)?

Mar 13, 2018

22

Advantage of quantum key distribution over post-quantum cryptography

Mar 15, 2018

15

How does approximating gates via universal gates scale with the length of the computation?

Mar 19, 2018

14

Given a decomposition for a unitary $U$, how do you decompose the corresponding controlled unitary gate $C(U)$?

Mar 26, 2018

5

How to implement the power of a product of quantum gates as a circuit?

Jun 11, 2021

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quantum-gate

49

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8

posts

measurement

43

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5

posts

quantum-state

35

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7

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error-correction

34

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8

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unitarity

26

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1

post

Reputation

+20

How can one check whether a given quantum state is a graph state?

+20

If all quantum gates must be unitary, what about measurement?

+10

Unentangling a qubit from a system: can we convert $\alpha|000\rangle+\beta|111\rangle$ into $\alpha|00\rangle+\beta|11\rangle$?

+10

Advantage of quantum key distribution over post-quantum cryptography

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