Foundations of quantum interference and quantum communication

We investigate single-particle interference phenomena for quantum information processing. Unlike the standard approach, which explores quantum entanglement as the primary resource for genuine quantum advantage, we have shown that quantum interference (of a single quantum particle) can be a resource to devise genuine protocols that outperform the classical counterparts. By exploring spatial superpositions of quantum particles, we have developed new communication and computation protocols [IC1-IC7], such as two-way communication with a single quantum particle [IC1], a protocol for quantum enhancement to information acquisition speed [IC3], and universal quantum computing by quantum-controlled classical operations [IC7].

© Lorenzo Nocchi


[IC1]  Two-way communication with a single quantum particle, F. del Santo and B. Dakić, Physical  Review Letters 120, 060503 (2018),

[IC2]  Interference as an information-theoretic game, S. Horvat and B. Dakić, Quantum 5, 404 (2021),

[IC3]  Quantum enhancement to information speed acquisition, S. Horvat and B. Dakić, New Journal of Physics 23, 033008 (2021),

[IC4]  Coherence Equality and Communication in Quantum Superposition, F. Del Santo and B. Dakić, Physical Review Letters 124, 190501 (2020),

[IC5]  Experimental two-way communication with one photon, F. Massa, A. Moqanaki, F. Del Santo, J. A. Kettlewell, B. Dakić, and P. Walther, Advanced Quantum Technologies 2, 1900050 2019,

[IC6]  Accessing inaccessible information via quantum indistinguishability, S. Horvat and B. Dakić, New Journal of Physics 25, 113008 (2023),

[IC7]  Universal quantum computation via quantum controlled classical operations, S. Horvat, X. G. Gao, and B. Dakić, Journal of Physics A: Mathematical and Theoretical 55, 075301 (2022),