Quantum 7, 1126 (2023). https://doi.org/10.22331/q-2023-10-03-1126 Pauli-based computation (PBC) is driven by a sequence of adaptively chosen, non-destructive measurements of Pauli observables. Any quantum circuit written in terms of the Clifford+$T$ gate set and having $t$ […]
Quantum 7, 1125 (2023). https://doi.org/10.22331/q-2023-10-03-1125 Information capacity enhancement through the coherent control of channels has attracted much attention of late, with work exploring the effect of coherent control of channel causal orders, channel superpositions, and […]
Quantum 7, 1124 (2023). https://doi.org/10.22331/q-2023-09-26-1124 Non-Markovian dynamics are characterized by information backflows, where the evolving open quantum system retrieves part of the information previously lost in the environment. Hence, the very definition of non-Markovianity implies […]
Quantum 7, 1123 (2023). https://doi.org/10.22331/q-2023-09-26-1123 A common approach to studying the performance of quantum error correcting codes is to assume independent and identically distributed single-qubit errors. However, the available experimental data shows that realistic errors […]
Quantum 7, 1122 (2023). https://doi.org/10.22331/q-2023-09-26-1122 Recently, a class of fractal surface codes (FSCs), has been constructed on fractal lattices with Hausdorff dimension $2+epsilon$, which admits a fault-tolerant non-Clifford CCZ gate [1]. We investigate the performance […]
Quantum 7, 1121 (2023). https://doi.org/10.22331/q-2023-09-26-1121 We generalize the Quantum Approximate Optimization Algorithm (QAOA) of Farhi et al. (2014) to allow for arbitrary separable initial states with corresponding mixers such that the starting state is the […]
Quantum 7, 1120 (2023). https://doi.org/10.22331/q-2023-09-25-1120 Symmetry is a unifying concept in physics. In quantum information and beyond, it is known that quantum states possessing symmetry are not useful for certain information-processing tasks. For example, states […]
Quantum 7, 1119 (2023). https://doi.org/10.22331/q-2023-09-25-1119 Quantum interference phenomena are widely viewed as posing a challenge to the classical worldview. Feynman even went so far as to proclaim that they are the $textit{only mystery}$ and the […]
Quantum 7, 1118 (2023). https://doi.org/10.22331/q-2023-09-25-1118 Superconducting quantum circuits are a promising hardware platform for realizing a fault-tolerant quantum computer. Accelerating progress in this field of research demands general approaches and computational tools to analyze and […]
Quantum 7, 1117 (2023). https://doi.org/10.22331/q-2023-09-21-1117 Sharing multi-partite quantum entanglement between parties allows for diverse secure communication tasks to be performed. Among them, conference key agreement (CKA) – an extension of key distribution to multiple parties […]
Recent Comments