22 citations · 39 across the 7 of their papers we have counts for
6 papers · 1 filter
Temporal nonlocality of a qudit resides in the input state, not the channel, and certifies temporal teleportation up to a fundamental limit
Karol Bartkiewicz, Patrycja Tulewicz
Correlations between two moments in time can be too strong for any classical explanation -- and, remarkably, this can happen for a single quantum system measured twice, with no sec…
Context-Verified, Error-Budget-Aware Decomposition Selection for Toffoli Networks
Karol Bartkiewicz, Patrycja Tulewicz
The cheapest Toffoli (CCX) decompositions (relative-phase and control-reduced Toffolis) save two-qubit gates, which dominate the error budget of near-term hardware, but they are co…
Spin chirality across quantum state copies detects hidden entanglement
Patrycja Tulewicz, Karol Bartkiewicz, Franco Nori
Entanglement can hide in two fundamentally different ways. First, multi-copy correlations can carry information that no single-copy measurement on an unknown state is able to acces…
Resource-efficient quantum correlation measurements via multicopy neural network methods
Patrycja Tulewicz, Karol Bartkiewicz, Adam Miranowicz +1
Measuring complex properties in quantum systems, such as measures of quantum entanglement and Bell nonlocality, is inherently challenging. Traditional methods, like quantum state t…
Experimental Liouvillian exceptional points in a quantum system without Hamiltonian singularities
Shilan Abo, Patrycja Tulewicz, Karol Bartkiewicz +2
Hamiltonian exceptional points (HEPs) are spectral degeneracies of non-Hermitian Hamiltonians describing classical and semiclassical open systems with losses and/or gain. However,…
Synergic quantum generative machine learning
Karol Bartkiewicz, Patrycja Tulewicz, Jan Roik +1
We introduce a new approach towards generative quantum machine learning significantly reducing the number of hyperparameters and report on a proof-of-principle experiment demonstra…