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| Typ | Amount | VAT | Currency | Share | Status | Cost centre |
| APC | 1225.68 | 4.29 | EUR | 92.46 % | (DEAL) | 9001010 / 476152 |
| Payment fee | 100.00 | 0.35 | EUR | 7.54 % | (Bestellt) | 9001010 / 476152 |
| APC | -1225.68 | 0.00 | EUR | -92.46 % | (Storniert) | 9001010 / 476152 |
| APC | 1225.68 | 0.00 | EUR | 92.46 % | (Bestellt) | 28902 / 476152 |
| Sum | 1325.68 | 4.64 | EUR | |||
| Total | 1330.32 |
| Journal Article | PUBDB-2025-05521 |
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2026
SpringerOpen
Heidelberg [u.a.]
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Please use a persistent id in citations: doi:10.1140/epjqt/s40507-025-00452-0 doi:10.3204/PUBDB-2025-05521
Report No.: arXiv:2407.02569
Abstract: Variational Quantum Eigensolver (VQE) is widely used in near-term hardware. However, their performances remain limited by the poor trainability and are dependent on random parameter initialization. In this work, we propose a warm start method inspired by imaginary time evolution, allowing for determining initial parameters that prioritize lower energy states in a resource-efficient way. Using classical simulations, we demonstrate that this warm start method significantly improves the success rate and reduces the number of iterations required for the convergence of VQE. The numerical results also indicate that the warm start approach effectively mitigates statistical errors arising from a finite number of measurements, and to a certain extent alleviates the effect of barren plateaus.
Keyword(s): Warm start ; Variational quantum algorithm ; Combinatorial optimization
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