Learning quantum Hamiltonians at any temperature in polynomial time · HackerPapers discussions

Learning quantum Hamiltonians at any temperature in polynomial time — mentioned by westurner

Tue, 04 Feb 2025 17:53:25 GMT

Parameter estimation algorithms: "Learning quantum Hamiltonians at any temperature in polynomial time" (2024) https://arxiv.org/abs/2310.02243 .. https://news.ycombinator.com/item?id=40396171 "Robustly learning Hamiltonian dynamics of a superconducting quantum processor" (2024) https://www.nature.com/articles/s41467-024-52629-3 .. https://news.ycombinator.com/item?id=42086445

Paper and discussion history. A mention is not an endorsement.

Learning quantum Hamiltonians at any temperature in polynomial time — mentioned by westurner

Sun, 24 Nov 2024 19:37:18 GMT

From https://news.ycombinator.com/item?id=42030319 : > "Learning quantum Hamiltonians at any temperature in polynomial time" (2024) https://arxiv.org/abs/2310.02243 re: the "relaxation technique" .. https://news.ycombinator.com/item?id=40396171 >> We fully resolve this problem, giving a polynomial time algorithm for learning H to precision ϵ from polynomially many copies of the Gibbs state at any constant β>0. >> Our main technical contribution is a new flat polynomial approximation to the exponential function, and a translation between multi-variate scalar polynomials and nested commutators.…

Paper and discussion history. A mention is not an endorsement.

Learning quantum Hamiltonians at any temperature in polynomial time — mentioned by westurner

Sun, 03 Nov 2024 00:33:50 GMT

From "Chaos researchers can now predict perilous points of no return" (2022) https://news.ycombinator.com/item?id=32862414 : > FEM: Finite Element Method: https://en.wikipedia.org/wiki/Finite_element_method >> FEM: Finite Element Method (for ~solving coupled PDEs (Partial Differential Equations)) >> FEA: Finite Element Analysis (applied FEM) > awesome-mecheng > Finite Element Analysis: https://github.com/m2n037/awesome-mecheng#fea And also, "Learning quantum Hamiltonians at any temperature in polynomial time" (2024) https://arxiv.org/abs/2310.02243 re: the "relaxation technique" ..…

Paper and discussion history. A mention is not an endorsement.

Learning quantum Hamiltonians at any temperature in polynomial time — mentioned by westurner

Mon, 15 Jul 2024 02:31:59 GMT

- "Learning quantum Hamiltonians at any temperature in polynomial time" (2024) https://arxiv.org/abs/2310.02243 .. https://news.ycombinator.com/item?id=40396171 - "Bridging coherence optics and classical mechanics: A generic light polarization-entanglement complementary relation" (2023) https://journals.aps.org/prresearch/abstract/10.1103/PhysRev... .. https://news.ycombinator.com/item?id=40492160 re photonic phase

Paper and discussion history. A mention is not an endorsement.

Learning quantum Hamiltonians at any temperature in polynomial time — mentioned by westurner

Sat, 25 May 2024 22:09:49 GMT

From "Computer-generated holography with ordinary display" (2024) https://opg.optica.org/viewmedia.cfm?r=1&rwjcode=ol&uri=ol-4... : > The hologram cascade is synthesized by solving an inverse problem with respect to the propagation of incoherent light. From "Learning quantum Hamiltonians at any temperature in polynomial time" (2024) https://arxiv.org/abs/2310.02243 .. https://news.ycombinator.com/item?id=40396171 : >> The relaxation technique is well known in the field of approximation algorithms, but it had never been tried in quantum learning. Relaxation (iterative method)…

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Learning quantum Hamiltonians at any temperature in polynomial time — HN submission

Sat, 18 May 2024 02:51:37 GMT

Learning quantum Hamiltonians at any temperature in polynomial time

1 point; 1 discussion reply on HN. Paper and source history. A submission is not an endorsement.