Parameterized quantum comb and simpler circuits for reversing unknown qubit-unitary operations
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DOI: 10.1038/s41534-025-00979-1
Abstract: Quantum combs play a vital role in characterizing and transforming quantum processes, with wide-ranging applications in quantum information processing. However, obtaining the explicit quantum circuit for the desired quantum comb remains a challenging problem. We… read more here.
Keywords: qubit; parameterized quantum; unknown qubit; qubit unitary ... See more keywords
Experimentally undoing an unknown single-qubit unitary
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DOI: 10.1103/physreva.102.012602
Abstract: Undoing a unitary operation, i.e., reversing its action, is the task of canceling the effects of a unitary evolution on a quantum system, and it may be easily achieved when the unitary is known. Given… read more here.
Keywords: undoing unknown; single qubit; qubit unitary; experimentally undoing ... See more keywords
Experimental Quantum Message Authentication with Single Qubit Unitary Operation
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DOI: 10.3390/app11062653
Abstract: We have developed a quantum message authentication protocol that provides authentication and integrity of an original message using single qubit unitary operations. Our protocol mainly consists of two parts: quantum encryption and a correspondence check.… read more here.
Keywords: single qubit; quantum message; message authentication; qubit unitary ... See more keywords