In the past decade, the toolkit of quantum information has been expanded to include
processes in which the basic operations do not have definite causal relations. Originally …

Overcoming the influence of noise and imperfections in quantum devices is one of the main
challenges for viable quantum applications. In this article, we present different protocols …

Quantum error mitigation is a key approach for extracting target state properties on state-of-
the-art noisy machines and early fault-tolerant devices. Using the ideas from flag fault …

Variational quantum eigensolvers (VQEs) are successful algorithms for studying physical
systems on quantum computers. Recently, they were extended to the measurement-based …

Dephasing is a main noise mechanism that afflicts quantum information, it reduces visibility,
and destroys coherence and entanglement. Therefore, it must be reduced, mitigated, and, if …

It is known that multiphoton states can be protected from decoherence due to a passive loss
channel by applying noiseless attenuation before and noiseless amplification after the …

Entanglement purification and distillation protocols are essential for harnessing the full
potential of quantum communication technologies. Multiple strategies have been proposed …

Reducing the effect of errors is essential for reliable quantum computation. Quantum error
mitigation (QEM) and quantum error correction (QEC) are two frameworks that have been …

We describe a quantum variational algorithm for securities transactions settlement
optimization, based on a novel mathematical formalization of the problem that includes the …

With sub-threshold quantum error correction on quantum hardware still out of reach,
quantum error mitigation methods are currently deemed an attractive option for …