To build highly performing quantum computers, researchers should be able to reliably derive information about the noise inside them, while also identifying effective strategies to suppress this noise. In recent years, significant progress has been […]
Quantum 7, 1163 (2023). https://doi.org/10.22331/q-2023-11-03-1163 Simulating properties of quantum materials is one of the most promising applications of quantum computation, both near- and long-term. While real-time dynamics can be straightforwardly implemented, the finite temperature ensemble […]
Quantum 7, 1162 (2023). https://doi.org/10.22331/q-2023-11-03-1162 A unifying formalism of generalized conditional expectations (GCEs) for quantum mechanics has recently emerged, but its physical implications regarding the retrodiction of a quantum observable remain controversial. To address the […]
Quantum 7, 1161 (2023). https://doi.org/10.22331/q-2023-11-03-1161 Landauer’s principle gives a fundamental limit to the thermodynamic cost of erasing information. Its saturation requires a reversible isothermal process, and hence infinite time. We develop a finite-time version of […]
Quantum 7, 1160 (2023). https://doi.org/10.22331/q-2023-11-03-1160 The star-triangle relation plays an important role in the realm of exactly solvable models, offering exact results for classical two-dimensional statistical mechanical models. In this article, we construct integrable quantum […]
Quantum 7, 1159 (2023). https://doi.org/10.22331/q-2023-11-03-1159 Deriving quantum mechanics from information-theoretic postulates is a recent research direction taken, in part, with the view of finding a beyond-quantum theory; once the postulates are clear, we can consider […]
Quantum 7, 1158 (2023). https://doi.org/10.22331/q-2023-11-03-1158 Accurate modeling of decoherence errors in quantum processors is crucial for analyzing and improving gate fidelities. To increase the accuracy beyond that of the Lindblad dynamical map, several generalizations have […]
Insider Brief The National Institute of Information and Communications Technology has developed a Superconducting Wide-Strip Photon Detector (SWSPD), featuring a novel structure that allows for highly efficient photon detection with a strip width over 200 […]
Insider Brief The U.S. Department of Energy (DOE) announced $11.4 million for six projects in quantum information science (QIS). The Fusion Energy Sciences (FES) program supports fundamental research to expand the understanding of matter at […]
Analog Quantum Circuits is a superconducting hardware components startup based in Brisbane, Queensland, Australia. They were founded in 2022 by a team that came from the University of Queensland. The company develops miniaturized core microwave […]
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