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…
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…