Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Piilo, Jyrki"'
Quantum state transfer is the act of transferring quantum information from one system in a quantum network to another without physically transporting carriers of quantum information, but instead engineering a Hamiltonian such that the state of the se
Externí odkaz:
http://arxiv.org/abs/2407.02145
The goal in quantum state transfer is to avoid the need to physically transport carriers of quantum information. This is achieved by using a suitably engineered Hamiltonian that induces the transfer of the state of one subsystem to another. A less kn
Externí odkaz:
http://arxiv.org/abs/2403.05623
Autor:
Settimo, Federico, Luoma, Kimmo, Chruściński, Dariusz, Vacchini, Bassano, Smirne, Andrea, Piilo, Jyrki
Publikováno v:
Phys. Rev. A 109, 062201 (2024)
The dynamics of open quantum systems is often solved by stochastic unravellings where the average over the state vector realizations reproduces the density matrix evolution. We focus on quantum jump descriptions based on the rate operator formalism.
Externí odkaz:
http://arxiv.org/abs/2402.12445
We present a framework for quantifying information flow within general quantum processes. For this purpose, we introduce the signaling power of quantum channels and discuss its relevant operational properties. This function supports extensions to hig
Externí odkaz:
http://arxiv.org/abs/2402.04213
Publikováno v:
Journal of Physics A: Mathematical and Theoretical 57 233001 (2024)
These are exciting times for quantum physics as new quantum technologies are expected to soon transform computing at an unprecedented level. Simultaneously network science is flourishing proving an ideal mathematical and computational framework to ca
Externí odkaz:
http://arxiv.org/abs/2311.16265
Autor:
Renault, Paul, Nokkala, Johannes, Roeland, Ganaël, Joly, Nicolas, Zambrini, Roberta, Maniscalco, Sabrina, Piilo, Jyrki, Treps, Nicolas, Parigi, Valentina
No quantum system can be considered totally isolated from its environment. In most cases the interaction between the system of interest and the external degrees of freedom deeply changes its dynamics, as described by open quantum system theory. Never
Externí odkaz:
http://arxiv.org/abs/2302.12674
Autor:
Liu, Zhao-Di, Siltanen, Olli, Kuusela, Tom, Miao, Rui-Heng, Ning, Chen-Xi, Li, Chuan-Feng, Guo, Guang-Can, Piilo, Jyrki
Publikováno v:
Science Advances 10, eadj3435 (2024)
Quantum entanglement and decoherence are the two counterforces of many quantum technologies and protocols. For example, while quantum teleportation is fueled by a pair of maximally entangled resource qubits, it is vulnerable to decoherence. In this A
Externí odkaz:
http://arxiv.org/abs/2210.14935
Publikováno v:
J. Phys. A: Math. Theor. 56 145301 (2023)
We report the results of an in-depth study of the role of graph topology on quantum transport efficiency in random removal and Watts-Strogatz networks. By using four different environmental models -- noiseless, driving by classical random telegraph n
Externí odkaz:
http://arxiv.org/abs/2205.10066
We apply the recently proposed quantum probing protocols with an unknown system-probe coupling to probe the convex coefficients in mixtures of commuting states. By using two reference states instead of one as originally suggested, we are able to prob
Externí odkaz:
http://arxiv.org/abs/2107.07876
Periodically driven dynamics of open quantum systems is very interesting because typically non-equilibrium steady state is reached, which is characterized by a non-vanishing current. In this work, we study time discrete and periodically driven dynami
Externí odkaz:
http://arxiv.org/abs/2107.05314