Quantum

Quantum Views publishes Perspectives, Editorials, and Leaps on research papers and other issues of relevance for Quantum.

Perspective

Fisher Information: A Crucial Tool for NISQ Research

Kishor Bharti,

Quantum Views 5, 61 (2021).

Quantum computers available today consist of around a few dozen qubits. Each quantum gate operation is afflicted by a certain level of noise, and hence the computations are restricted…

Perspective

Gate set tomography is not just hyperaccurate, it’s a different way of thinking

Gregory A. L. White,

Quantum Views 5, 60 (2021).

Characterising quantum gates When a quantum computation breaks down, where — and how — did the error occur? We often take for granted the diversity of intricate noise in quantum informatio…

Perspective

Poisson states in quantum information

Cosmo Lupo,

Quantum Views 5, 59 (2021).

A Poisson process is a mathematical model used to describe random events occurring in time or space. It has a wide range of applications, including natural sciences, operation research, and…

Perspective

Atomic quantum memories boost quantum imaging and sensing

Erhan Saglamyurek,

Quantum Views 5, 58 (2021).

Quantum technologies rely on the generation, manipulation and measurements of quantum superposition states in a highly controlled and coherent fashion using various physical systems, such as…

Perspective

Making fermionic quantum simulators more affordable

Daniel Leykam,

Quantum Views 5, 57 (2021).

One of the most promising applications of future quantum computers is the ab-initio calculation of chemical properties including ground state energies [1]. The required number of qubits and…

Perspective

Quantum teleportation beyond its standard form: Multi-Port-Based Teleportation

Marco Túlio Quintino,

Quantum Views 5, 56 (2021).

Standard quantum teleportation Today, quantum teleportation [1] is recognised as one of the pillars of quantum information theory. In addition to its foundational value, quantum teleportatio…

Perspective

Quantum speed-limited depletion of physical resources

Sebastian Deffner,

Quantum Views 5, 55 (2021).

Quantum speed limits: modern version of Heisenberg's uncertainty relation Arguably among the most recognizable features of quantum mechanics are the Heisenberg uncertainty relations [1]. Whe…

Perspective

From diagrams to quantum theory

John van de Wetering,

Quantum Views 5, 54 (2021).

Quantum mechanics was developed over a number of decades, starting with ad-hoc solutions to specific problems before expanding into the full theories of Heisenberg's matrix mechanics and Sch…

Perspective

Spot the Difference: Distinguishing Boson Sampling Experiments from Classical Simulations

Alexandra E. Moylett,

Quantum Views 5, 53 (2021).

Quantum Advantage from Linear Optics Quantum computing has promised advantages in a wide variety of problems, including simulating physical systems, optimisation problems and machine learnin…

Perspective

An Effective Framework for Full-Stack Benchmarking of Quantum Computers

Michele Amoretti,

Quantum Views 5, 52 (2021).

Current noisy intermediate-scale quantum (NISQ) computers have not yet converged on a specific candidate device technology. Superducting transmon qubits [1,2] and trapped ions [3,4] are fron…

Perspective

Harmonizing continuous noise to build a modular photonic quantum computer

Francesco Arzani,

Quantum Views 5, 51 (2021).

Quantum computing with light Light has been related in many ways to the development of quantum mechanics. It is only natural that it should play a primary role in the development of quantum…

Perspective

Gradients just got more flexible

Johannes Jakob Meyer,

Quantum Views 5, 50 (2021).

Massive efforts transformed quantum computers from a far-fetched dream into a physical reality. Ever-more capable devices manage to exploit quantum effects to perform computations. Despite t…

Perspective

One Measurement, Two Measurements: from Sequential Products to Convexity

Martin Plávala,

Quantum Views 5, 49 (2021).

When attempting to derive quantum theory, one of the biggest questions that we have to answer is: why the Hilbert space? Replacing probability distributions with wave functions gives rise to…

Perspective

Characterizing quantum correlations one step at a time

Yeong-Cherng Liang,

Quantum Views 4, 48 (2020).

The fact that correlations between spacelike-separated measurement outcomes observed in nature can be stronger than what is explicable by a classical, local common cause [1] has always been…

Perspective

A Moment for Random Measurements

Lukas Knips,

Quantum Views 4, 47 (2020).

Introduction $\textit{Entangled quantum systems are more strongly correlated than classical systems can be.}$ This simplified statement proves to be remarkably rich by raising several question…

Perspective

Crosstalk diagnosis for the next generation of quantum processors

Dominik Hangleiter,

Quantum Views 4, 46 (2020).

Generally speaking, so-called `crosstalk' denotes any type of unwanted coupling between the components of a signal-processing device — or more precisely: “any phenomenon by which a signal…

Category: Editorial