A HHL quantum algorithm and the phase estimation

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In HHL algorithm, does the controlled unitary (Hamiltonian simulation part of Quantum phase estimation) depend on Hermitian matrix coefficients and how?
In HHL algorithm, does the controlled unitary (Hamiltonian simulation part of Quantum phase estimation) depend on Hermitian matrix coefficients and how?
 
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Yes, the controlled unitary used in the Hamiltonian simulation part of Quantum Phase Estimation depends on the Hermitian matrix coefficients. Specifically, the controlled unitary is constructed from the matrix coefficients of the Hermitian matrix that describes the system’s Hamiltonian. The Hamiltonian is then used to evolve the given state vector over a period of time, and the resulting state vector can be used to estimate the eigenvalues of the Hamiltonian.
 
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I read Hanbury Brown and Twiss's experiment is using one beam but split into two to test their correlation. It said the traditional correlation test were using two beams........ This confused me, sorry. All the correlation tests I learnt such as Stern-Gerlash are using one beam? (Sorry if I am wrong) I was also told traditional interferometers are concerning about amplitude but Hanbury Brown and Twiss were concerning about intensity? Isn't the square of amplitude is the intensity? Please...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
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