Quantum 7, 1047 (2023). https://doi.org/10.22331/q-2023-07-06-1047 We study the task of encryption with certified deletion (ECD) introduced by Broadbent and Islam (2020), but in a device-independent setting: we show that it is possible to achieve this […]
Quantum 7, 1046 (2023). https://doi.org/10.22331/q-2023-07-03-1046 We present three quantum algorithms for clustering graphs based on higher-order patterns, known as motif clustering. One uses a straightforward application of Grover search, the other two make use of […]
Quantum 7, 1045 (2023). https://doi.org/10.22331/q-2023-06-29-1045 With the fast development of quantum technology, the sizes of both digital and analog quantum systems increase drastically. In order to have better control and understanding of the quantum hardware, […]
Quantum 7, 1044 (2023). https://doi.org/10.22331/q-2023-06-29-1044 Shadow estimation is an efficient method for predicting many observables of a quantum state with a statistical guarantee. In the multi-shot scenario, one performs projective measurement on the sequentially prepared […]
Quantum 7, 1043 (2023). https://doi.org/10.22331/q-2023-06-22-1043 The duration of bidirectional transfer protocols in 1D topological models usually scales exponentially with distance. In this work, we propose transfer protocols in multidomain SSH chains and Creutz ladders that […]
Quantum 7, 1042 (2023). https://doi.org/10.22331/q-2023-06-21-1042 We study the phenomenon of cosmological particle production of Dirac fermions in a Friedmann-Robertson-Walker spacetime, focusing on a $(1+1)-$dimensional case in which the evolution of the scale factor is set […]
Quantum 7, 1041 (2023). https://doi.org/10.22331/q-2023-06-12-1041 We consider a class of translation-invariant 2D tensor network states with a stabilizer symmetry, which we call stabilizer PEPS. The cluster state, GHZ state, and states in the toric code […]
Quantum 7, 1040 (2023). https://doi.org/10.22331/q-2023-06-12-1040 Quantum simulation of strongly correlated systems is potentially the most feasible useful application of near-term quantum computers. Minimizing quantum computational resources is crucial to achieving this goal. A promising class […]
Quantum 7, 1039 (2023). https://doi.org/10.22331/q-2023-06-12-1039 In adiabatic quantum computing finding the dependence of the gap of the Hamiltonian as a function of the parameter varied during the adiabatic sweep is crucial in order to optimize […]
Quantum 7, 1038 (2023). https://doi.org/10.22331/q-2023-06-07-1038 Quantum correlations and Wigner negativity are two important signatures of nonclassicality in continuous-variable quantum systems. In this work, we investigate how both are intertwined in the context of the conditional […]
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