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quant-ph2026
Trading Imaginary Time for Randomness in Ground State Preparation
Alvan Arulandu, John M. Martyn, Isaac L. Chuang
Imaginary-time evolution (ITE) is a foundational method for ground state preparation on quantum computers. However, because ITE is non-unitary, existing implementations incur a sam…
quant-ph2026
Resolving the Edge of a Quantum Pyramid
Alvan Arulandu
Standing on the shoulders of giants, we resolve the quantum pyramids conjecture, confirming the globally information-optimal measurement for an ensemble of equiangular equiprobable…
quant-ph2026
Agnostic Product Mixed State Tomography via Robust Statistics
Alvan Arulandu, Ilias Diakonikolas, Daniel Kane +1
We study the complexity of two closely related learning problems, one quantum and one classical. In the quantum setting, we consider agnostic tomography for the natural class of pr…