Quantum

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

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…

Perspective

Generalised Counterdiabatic Driving in Open Systems

Anthony Kiely,

Quantum Views 4, 45 (2020).

All real quantum systems are embedded in an external bath which may lead to a loss of coherence over time. However, the coherence of the state is critical to exploit many quantum effects nee…

Perspective

Characterizing expansion, classically and quantumly

Cécilia Lancien,

Quantum Views 4, 44 (2020).

Graphs are ubiquitous objects, useful for modeling all kinds of structures, both concrete and abstract. One structural feature of graphs which seems to be almost universally important is exp…

Perspective

Making quantum simulations of quantum field theories more affordable

Lucas Lamata,

Quantum Views 4, 43 (2020).

The standard model of particle physics is among the most successful scientific achievements in human history. However, further progress is being hampered by the enormous computing power that…

Perspective

Causality meets resource theory

Rafael Chaves,

Quantum Views 4, 42 (2020).

When presenting Bell's theorem [1] to audiences seeing it for the first time, be they students or (surprisingly) physicists from areas with little regard to the quantum foundations, I often…

Perspective

Hamiltonian Amplification: Another Application of Parametric Amplification

Wenchao Ge,

Quantum Views 4, 41 (2020).

Motivation Enhancing coherent interactions against decoherence in quantum systems is the holy grail for implementing various quantum technologies, such as quantum computation, quantum simula…

Perspective

Perspective on: Switching Quantum Reference Frames for Quantum Measurement

Pierre Martin-Dussaud,

Quantum Views 4, 40 (2020).

Quantum reference frames In the last few years, the communities of quantum information and quantum gravity have been working together on the notion of $\textit{quantum reference frames}$. The…

Category: Perspective