Quantum Computing Stack Exchange

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235

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Consequences of SAT ∈ BQP

algorithm complexity-theory bqp

answered 1 min ago Mark S 5,944

0

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1

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16

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Using Grover on entangled states

entanglement grovers-algorithm amplitude-amplification

answered 1 hour ago Mariia Mykhailova 7,831

2

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1

answer

429

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VQE Cirq example

measurement simulation hamiltonian-simulation cirq vqe

modified 1 hour ago CommunityBot 1

0

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1

answer

18

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State Preparation Question

quantum-gate

answered 1 hour ago KAJ226 11.2k

0

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0

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5

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Parameterized swap test and perfect swap test

quantum-gate measurement quantum-enhanced-machine-learning swap-test

asked 1 hour ago user19468 21

1

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3

answers

68

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How to show that the QFT satisfies $\frac1{\sqrt N}\sum_j\prod_le^{2\pi i j_l k/2^l}|j_1...j_n⟩=\bigotimes_l \frac1{\sqrt2}(|0⟩+e^{2\pi i k/2^l}|1⟩)$?

quantum-state textbook-and-exercises mathematics quantum-fourier-transform product-states

modified 10 hours ago glS♦ 16.7k

0

votes

1

answer

84

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Equating the state of the Phase Estimation algorithm to $\frac{1}{2^{t/2}}\sum_{k=0}^{2^t-1} e^{2\pi i\phi k}|k\rangle$

textbook-and-exercises nielsen-and-chuang quantum-fourier-transform phase-estimation

modified 10 hours ago glS♦ 16.7k

0

votes

1

answer

32

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The meaning of non-destructive measurements in QEC

measurement error-correction stabilizer-code

answered 11 hours ago sohamb172 154

0

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0

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46

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How to understand Clifford+T from a quantum information theory perspective

information-theory stabilizer-code clifford-group fault-tolerance mutual-information

modified 13 hours ago glS♦ 16.7k

2

votes

0

answers

26

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What is the explicit best known quantum algorithm for LWE?

quantum-gate algorithm complexity-theory quantum-advantage

modified 16 hours ago narip 2,182

6

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2

answers

367

views

Expected repetitions of the quantum part of Shor's algorithm

algorithm shors-algorithm

answered 18 hours ago Craig Gidney 18k

8

votes

0

answers

274

views

+50

Can we use quantum phase estimation to learn anything post-classical about the dynamics of puzzles like the Rubik's cube?

hamiltonian-simulation phase-estimation applications

modified yesterday Mark S 5,944

3

votes

1

answer

163

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Does one measurement affect the following measurement errors in mid-circuit measurement?

qiskit measurement

answered yesterday user1271772 11.6k

2

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0

answers

29

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Helstrom Measurement when two quantum states are close

quantum-state density-matrix trace-distance povm state-discrimination

modified yesterday user1271772 11.6k

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Consequences of SAT ∈ BQP

Using Grover on entangled states

VQE Cirq example

State Preparation Question

Parameterized swap test and perfect swap test

How to show that the QFT satisfies $\frac1{\sqrt N}\sum_j\prod_le^{2\pi i j_l k/2^l}|j_1...j_n⟩=\bigotimes_l \frac1{\sqrt2}(|0⟩+e^{2\pi i k/2^l}|1⟩)$?

Equating the state of the Phase Estimation algorithm to $\frac{1}{2^{t/2}}\sum_{k=0}^{2^t-1} e^{2\pi i\phi k}|k\rangle$

The meaning of non-destructive measurements in QEC

How to understand Clifford+T from a quantum information theory perspective

What is the explicit best known quantum algorithm for LWE?

Expected repetitions of the quantum part of Shor's algorithm

Can we use quantum phase estimation to learn anything post-classical about the dynamics of puzzles like the Rubik's cube?

Does one measurement affect the following measurement errors in mid-circuit measurement?

Helstrom Measurement when two quantum states are close

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