Last month, Karen Vogtmann and Michael Borinsky posted a proof that there is a truckload of mathematical structure within a hitherto inaccessible mathematical world called the moduli space of graphs, which Vogtmann and a collaborator […]
Quantum 7, 926 (2023). https://doi.org/10.22331/q-2023-02-16-926 Einstein-Podolsky-Rosen (EPR) steering is often (implicitly or explicitly) taken to be evidence for spooky action-at-a-distance. An alternative perspective on steering is that Alice has no causal influence on the physical […]
Information Carriers “One of the main driving forces behind the ability for physicists to isolate quantum systems is the potential use as information carriers for a new generation of technology called quantum technology,” said John […]
Strong interactions between particles in physical systems can result in various highly correlated ground states. These states and the strong correlations underpinning them have been extensively explored in recent years. Click to rate this post! […]
Quantum 7, 925 (2023). https://doi.org/10.22331/q-2023-02-16-925 NISQ devices have several physical limitations and unavoidable noisy quantum operations, and only small circuits can be executed on a quantum machine to get reliable results. This leads to the […]
Quantum 7, 924 (2023). https://doi.org/10.22331/q-2023-02-16-924 By encoding logical qubits into specific types of photonic graph states, one can realize quantum repeaters that enable fast entanglement distribution rates approaching classical communication. However, the generation of these […]
Quantum 7, 923 (2023). https://doi.org/10.22331/q-2023-02-16-923 Coupling to the environment typically suppresses quantum properties of physical systems via decoherence mechanisms. This is one of the main obstacles in practical implementations of quantum protocols. In this work […]
Quantum 7, 922 (2023). https://doi.org/10.22331/q-2023-02-16-922 Bell inequality tests where the detection efficiency is below a certain threshold $eta_{rm{crit}}$ can be simulated with local hidden-variable models. Here, we introduce a method to identify Bell tests requiring […]
Today, Dana and I unhesitatingly join a group of Jewish scientists around the world (see the full current list of signatories here, including Ed Witten, Steven Pinker, Manuel Blum, Shafi Goldwasser, Judea Pearl, Lenny Susskind, […]
Dear all, we have a Heinz Nixdorf Endowed Full Professorship (W3) available in the Computer Science department of Paderborn University, Germany. The target area is ideally Quantum Algorithms and Software, but applications in all areas […]
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