Quantum and neuromorphic approaches both hold the promise of fundamentally rewriting the way we do computing. And now they have been merged after researchers developed a “quantum memristor” that could form the basis of quantum […]
Category: singularityhub
Quantum 6, 680 (2022). https://doi.org/10.22331/q-2022-04-04-680 We consider the problem of continuous quantum error correction from a Bayesian perspective, proposing a pair of digital filters using logarithmic probabilities that are able to achieve near-optimal performance on […]
Quantum 6, 679 (2022). https://doi.org/10.22331/q-2022-03-31-679 This work analyses the performance of quantum circuits and general processes to transform $k$ uses of an arbitrary unitary operation $U$ into another unitary operation $f(U)$. When the desired function […]
Quantum 6, 678 (2022). https://doi.org/10.22331/q-2022-03-30-678 We show how to apply the recursive quantum approximate optimization algorithm (RQAOA) to MAX-$k$-CUT, the problem of finding an approximate $k$-vertex coloring of a graph. We compare this proposal to […]
Quantum 6, 677 (2022). https://doi.org/10.22331/q-2022-03-30-677 Variational quantum algorithms are ubiquitous in applications of noisy intermediate-scale quantum computers. Due to the structure of conventional parametrized quantum gates, the evaluated functions typically are finite Fourier series of […]
Quantum 6, 676 (2022). https://doi.org/10.22331/q-2022-03-30-676 We propose a quantum representation of binary classification trees with binary features based on a probabilistic approach. By using the quantum computer as a processor for probability distributions, a probabilistic […]
Quantum 6, 675 (2022). https://doi.org/10.22331/q-2022-03-30-675 The three key elements of a quantum simulation are state preparation, time evolution, and measurement. While the complexity scaling of time evolution and measurements are well known, many state preparation […]
Quantum 6, 674 (2022). https://doi.org/10.22331/q-2022-03-30-674 We investigate the interaction of weak light fields with two-dimensional lattices of atoms with high lying atomic Rydberg states. This system features different interactions that act on disparate length scales, […]
Quantum 6, 673 (2022). https://doi.org/10.22331/q-2022-03-29-673 Non-causal correlations certify the lack of a definite causal order among localized space-time regions. In stark contrast to scenarios where a single region influences its own causal past, some processes […]
There was a time when converting an old photograph into a digital image impressed people. These days we can do a bit more, like bringing vintage photos to life à la Harry Potter. And this […]
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