A newly published theoretical and computer modeling study suggests that the world’s most powerful lasers might finally crack the elusive physics behind some of the most extreme phenomena in the universe—gamma ray bursts, pulsar magnetospheres, […]
In today’s digital infrastructure, the data-bits we use to send and process information can either be 0 or 1. Being able to correct possible errors that may occur in computations using these bits is a […]
Quantum 5, 555 (2021). https://doi.org/10.22331/q-2021-09-28-555 In a quantum measurement process, classical information about the measured system spreads throughout the environment. Meanwhile, quantum information about the system becomes inaccessible to local observers. Here we prove a […]
Quantum 5, 554 (2021). https://doi.org/10.22331/q-2021-09-28-554 We consider a model of quantum computation using qubits where it is possible to measure whether a given pair are in a singlet (total spin $0$) or triplet (total spin […]
Researchers have found a way to make ‘single-crystal flake’ devices that are so thin and free of defects, they have the potential to outperform components used today in quantum computer circuits. Click to rate this […]
Sorting a collection of shapes is child’s play. Circles here, squares there, triangles in their own pile. But if you take the task seriously, there’s a lot more to it. In fact, one of the […]
Quantum 5, 553 (2021). https://doi.org/10.22331/q-2021-09-28-553 Topological protection is employed in fault-tolerant error correction and in developing quantum algorithms with topological qubits. But, topological protection $textit{intrinsic to models being simulated}$, also robustly protects calculations, even on […]
Quantum 5, 552 (2021). https://doi.org/10.22331/q-2021-09-28-552 Given a Bell inequality, if its maximal quantum violation can be achieved only by a single set of measurements for each party or a single quantum state, up to local […]
Quantum 5, 551 (2021). https://doi.org/10.22331/q-2021-09-28-551 Multiple observers who independently harvest nonclassical correlations from a single physical system share the system’s ability to enable quantum correlations. We show that any number of independent observers can share […]
Computer security has become a bigger concern in the past year, due to sensational hack stories like the gasoline pipeline hack that occurred in May. Many have turned to quantum technology, specifically quantum encryption, to […]
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