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quant-ph2025
Ancilla-train quantum algorithm for simulating non-Markovian open quantum systems
Hans Michael Christensen, Johannes Agerskov, Frederik Nathan
We present a quantum algorithm for simulating open quantum systems coupled to Gaussian environments valid for any configuration and coupling strength. The algorithm is applicable t…
math-ph2025
Ground State Energy of Dilute Fermi Gases in 1D
Johannes Agerskov, Robin Reuvers, Jan Philip Solovej
We study the one-dimensional spin- Fermi gas, interacting through a general repulsive 2-body potential, and prove asymptotics of the ground state energy in the dilute limit. The…
quant-ph2025
Quantum Determinant Estimation
J. Agerskov, K. Splittorff
A quantum algorithm for computing the determinant of a unitary matrix is given. The algorithm requires no preparation of eigenstates of and estimates the phase of t…