Quantum 7, 905 (2023). https://doi.org/10.22331/q-2023-01-26-905 Learning the unknown Hamiltonian governing the dynamics of a quantum many-body system is a challenging task. In this manuscript, we propose a possible strategy based on repeated measurements on a […]
Quantum 7, 904 (2023). https://doi.org/10.22331/q-2023-01-24-904 We consider a system of multiple qubits without any quantum control. We show that one can mediate entanglement between different subsystems in a controlled way by adding a (locally) controlled […]
Google is one of the biggest companies on Earth. Google’s search engine is the front door to the internet. And according to recent reports, Google is scrambling. Late last year, OpenAI, an artificial intelligence company […]
Quantum 7, 903 (2023). https://doi.org/10.22331/q-2023-01-19-903 Qubit memory that is entangled with photonic qubit is the building block for long distance quantum repeaters. Cavity enhanced and long lived spin wave photon entanglement has been demonstrated by […]
Quantum 7, 902 (2023). https://doi.org/10.22331/q-2023-01-19-902 We introduce a new set of quantum channels: resonant multilevel amplitude damping (ReMAD) channels. Among other instances, they can describe energy dissipation effects in multilevel atomic systems induced by the […]
Quantum 7, 901 (2023). https://doi.org/10.22331/q-2023-01-19-901 The fisherman caught a quantum fish. “Fisherman, please let me go”, begged the fish, “and I will grant you three wishes”. The fisherman agreed. The fish gave the fisherman a […]
Quantum 7, 900 (2023). https://doi.org/10.22331/q-2023-01-19-900 The Kochen–Specker (KS) theorem reveals the nonclassicality of single quantum systems. In contrast, Bell’s theorem and entanglement concern the nonclassicality of composite quantum systems. Accordingly, unlike incompatibility, entanglement and Bell […]
Quantum 7, 899 (2023). https://doi.org/10.22331/q-2023-01-19-899 The variational quantum-classical algorithms are the most promising approach for achieving quantum advantage on near-term quantum simulators. Among these methods, the variational quantum eigensolver has attracted a lot of attention […]
Quantum 7, 898 (2023). https://doi.org/10.22331/q-2023-01-19-898 In this work, we introduce multipartite intrinsic non-locality as a method for quantifying resources in the multipartite scenario of device-independent (DI) conference key agreement. We prove that multipartite intrinsic non-locality […]
Quantum 7, 897 (2023). https://doi.org/10.22331/q-2023-01-13-897 Discarding undesirable measurement results in Bell experiments opens the detection loophole that prevents a conclusive demonstration of nonlocality. As closing the detection loophole represents a major technical challenge for many […]
Recent Comments