(cited: 1) Ī. B. Sagingalieva, D. A. Kronberg, “Adaptive algorithms of error correction and error estimation in quantum cryptography”, AIP Conf. N. R. Kenbaev, D. A. Kronberg, “Quantum measurement with post-selection for two mixed states”, AIP Conf. Usp., 64:1 (2021), 88–102 (cited: 5) (cited: 4)ĭ. A. Kronberg, “Increasing the Distinguishability of Quantum States with an Arbitrary Success Probability”, Proc. Phys., 134:5 (2022), 533–535Ī. S. Trushechkin, E. O. Kiktenko, D. A. Kronberg, A. K. Fedorov, “Security of the decoy state method for quantum key distribution”, Phys. Ryzhkin and on the Erratum to This Paper”, J. ĭ. A. Kronberg, E. O. Kiktenko, A. S. Trushechkin, A. K. Fedorov, “Comments on the Paper “Are There Enough Decoy States to Ensure Key Secrecy in Quantum Cryptography?” by S. N. R. Kenbaev, D. A. Kronberg, “Quantum postselective measurements: Sufficient condition for overcoming the Holevo bound and the role of max-relative entropy”, Phys. We show, that a two-tone capacitively coupled rf-signal is sufficient for the implementation of the algorithm.D. A. Kronberg, “Vulnerability of quantum cryptography with phase-time coding under channel attenuation”, TMF (to appear) Even more, the practical gain of our qutrit-implementation is found in a reduction of the number of iteration steps of the quantum Fourier transformation by a factor log2/log3≈0.63 as compared to the qubit mode. The algorithm is based on the base-3 semi-quantum Fourier transformation and enhances the quantum theoretical performance of the sensor by a factor 2. Specifically, we describe the metrological algorithm for using a superconducting transmon device operating in a qutrit mode as a magnetometer.
Here, we show that this result can be further improved by operating the quantum sensor in the qudit mode, i.e., by exploiting d rather than 2 levels. Sensors operating in the qubit mode and exploiting their coherence in a phase-sensitive measurement have been shown to approach the Heisenberg scaling in precision. Quantum metrology then relies on the availability of quantum engineered systems that involve controllable quantum degrees of freedom which are sensitive to the measured quantity.
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