Researchers have established lower bounds for Hamiltonian property testing, demonstrating that certain tasks require a significant amount of evolution time. Specifically, testing if a Hamiltonian is k-local or distinguishing it from a target Hamiltonian necessitates $\Omega(1/\varepsilon^2)$ total evolution time. This finding matches existing upper bounds and is the first time such lower bounds have been proven for Hamiltonian learning and testing problems, ruling out Heisenberg-limited scaling. The research also shows that amplitude estimation to a precision of $\varepsilon$ requires $\Omega(1/\varepsilon^2)$ total time evolution. AI
RANK_REASON The cluster contains an academic paper detailing theoretical research findings in quantum physics. [lever_c_demoted from research: ic=1 ai=0.1]
- arXiv
- Francisco Escudero Gutiérrez
- Hamiltonian operator
- Kallaugher
- Liang
- QIP'26
- Sinha
- Tang
- Tong
- TQC'25
- Wright
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