# Space-Bounded Unitary Quantum Computation with Postselection

@inproceedings{Tani2022SpaceBoundedUQ, title={Space-Bounded Unitary Quantum Computation with Postselection}, author={Seiichiro Tani}, booktitle={MFCS}, year={2022} }

Space-bounded computation has been a central topic in classical and quantum complexity theory. In the quantum case, every elementary gate must be unitary. This restriction makes it unclear whether the power of space-bounded computation changes by allowing intermediate measurement. In the bounded error case, Fefferman and Remscrim [STOC 2021, pp.1343–1356] and Girish, Raz and Zhan [ICALP 2021, pp.73:1–73:20] recently provided the break-through results that the power does not change. This paper…

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