Macroscopic quantum phenomena
View article: Experimental Realization of an Intrinsic Magnetic Topological Insulator<sup>*</sup>
Experimental Realization of an Intrinsic Magnetic Topological Insulator<sup>*</sup> Open
An intrinsic magnetic topological insulator (TI) is a stoichiometric magnetic compound possessing both inherent magnetic order and topological electronic states. Such a material can provide a shortcut to various novel topological quantum e…
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<i>Colloquium</i>: Quantum matter built from nanoscopic lattices of atoms and photons Open
This Colloquium describes a new paradigm for creating strong quantum interactions of light and matter by way of single atoms and photons in nanoscopic lattices. Beyond the possibilities for quantitative improvements for familiar phenomena …
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Holographic quantum matter Open
We present a review of theories of states of quantum matter without quasiparticle excitations. Solvable examples of such states are provided through a holographic duality with gravitational theories in an emergent spatial dimension. We rev…
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A Chirality-Based Quantum Leap Open
There is increasing interest in the study of chiral degrees of freedom occurring in matter and in electromagnetic fields. Opportunities in quantum sciences will likely exploit two main areas that are the focus of this Review: (1) recent ob…
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Quantum many-body scars from magnon condensation Open
We study the eigenstate properties of a nonintegrable spin chain that was recently realized experimentally in a Rydberg-atom quantum simulator. In the experiment, long-lived coherent many-body oscillations were observed only when the syste…
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Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition Open
The light-matter interaction can be utilized to qualitatively alter physical properties of materials. Recent theoretical and experimental studies have explored this possibility of controlling matter by light based on driving many-body syst…
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Dicke superradiance in solids [Invited] Open
Recent advances in optical studies of condensed matter systems have led to the emergence of a variety of phenomena that have conventionally been studied in the realm of quantum optics. These studies have not only deepened our understanding…
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High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices Open
Heat-loving quantum oscillations The shape of the Fermi surface in a conductor can be gleaned through quantum oscillations—periodic changes in transport properties as an external magnetic field is varied. Like most quantum properties, the …
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Superradiant Quantum Materials Open
There is currently great interest in the strong coupling between the quantized photon field of a cavity and electronic or other degrees of freedom in materials. A major goal is the creation of novel collective states entangling photons wit…
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Recent progress in engineering the Casimir effect – applications to nanophotonics, nanomechanics, and chemistry Open
Quantum optics combines classical electrodynamics with quantum mechanics to describe how light interacts with material on the nanoscale, and many of the tricks and techniques used in nanophotonics can be extended to this quantum realm. Spe…
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Disorder in Quantum Many-Body Systems Open
Impurities, defects, and other types of imperfections are ubiquitous in realistic quantum many-body systems and essentially unavoidable in solid state materials. Often, such random disorder is viewed purely negatively as it is believed to …
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Manipulating Intertwined Orders in Solids with Quantum Light Open
Intertwined orders exist ubiquitously in strongly correlated electronic systems and lead to intriguing phenomena in quantum materials. In this Letter, we explore the unique opportunity of manipulating intertwined orders through entangling …
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Cavity quantum electrodynamics in application to plasmonics and metamaterials Open
Frontier quantum engineering tasks require reliable control over light-matter interaction dynamics, which could be obtained by introducing electromagnetic structuring. Initiated by the Purcell's discovery of spontaneous emission accelerati…
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Topological nanophononic states by band inversion Open
Nanophononics is essential for the engineering of thermal transport in\nnanostructured electronic devices, it greatly facilitates the manipulation of\nmechanical resonators in the quantum regime, and could unveil a new route in\nquantum co…
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Harnessing the Quantum Behavior of Spins on Surfaces Open
The desire to control and measure individual quantum systems such as atoms and ions in a vacuum has led to significant scientific and engineering developments in the past decades that form the basis of today's quantum information science. …
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Realizing quantum materials with Helium: Helium films at ultralow temperatures, from strongly correlated atomically layered films to topological superfluidity Open
This article provides an overview, primarily from an experimental perspective, of recent progress and future prospects in using helium to realize a range of quantum materials of generic interest, by "top-down" and "bottom-up" nanotechnolog…
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Studying Quantum Materials with Scanning SQUID Microscopy Open
Electronic correlations give rise to fascinating macroscopic phenomena such as superconductivity, magnetism, and topological phases of matter. Although these phenomena manifest themselves macroscopically, fully understanding the underlying…
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2023 roadmap for materials for quantum technologies Open
Quantum technologies are poised to move the foundational principles of quantum physics to the forefront of applications. This roadmap identifies some of the key challenges and provides insights on material innovations underlying a range of…
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Quantum Order-by-Disorder in Strongly Correlated Metals Open
Entropic forces in classical many-body systems, e.g., colloidal suspensions, can lead to the formation of new phases. Quantum fluctuations can have similar effects: spin fluctuations drive the superfluidity of helium-3, and a similar mecha…
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Multiparticle quantum plasmonics Open
A single photon can be coupled to collective charge oscillations at the interfaces between metals and dielectrics forming a single surface plasmon. The electromagnetic near-fields induced by single surface plasmons offer new degrees of fre…
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Quantum Phenomena in Nanomaterials: Coherent Superpositions of Fine Structure States in CdSe Nanocrystals at Room Temperature Open
One of the most recent developments at the forefront of nanotechnology is the attempt to exploit quantum phenomena in nanometer scale materials, exploring novel applications of quantum effects. An effective exploitation of quantum phenomen…
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Gate tuning from exciton superfluid to quantum anomalous Hall in van der Waals heterobilayer Open
Heterobilayers of 2D semiconductors can be gate tuned from exciton superfluid to quantum anomalous or quantum spin Hall insulator.
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Skyrmion qubits: Challenges for future quantum computing applications Open
Magnetic nano-skyrmions develop quantized helicity excitations, and the quantum tunneling between nano-skyrmions possessing distinct helicities is indicative of the quantum nature of these particles. Experimental methods capable of nondest…
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Exploring Quantum Sensing Potential for Systems Applications Open
The current rise of quantum technology is compelled by quantum sensing research. Thousands of research labs are developing and testing a broad range of sensor prototypes. However, there is a lack of knowledge about specific applications an…
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Quantum anomalous Hall Majorana platform Open
We show that quasi-one-dimensional (1D) quantum wires can be written onto the\nsurface of magnetic topological insulator (MTI) thin films by gate arrays. When\nthe MTI is in a quantum anomalous Hall (QAH) state, MTI$/$superconductor\nquant…
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Quantum enabled functional neuroimaging: the why and how of magnetoencephalography using optically pumped magnetometers Open
Non-invasive imaging has transformed neuroscientific discovery and clinical practice, providing a non-invasive window into the human brain. However, whilst techniques like MRI generate ever more precise images of brain structure, in many c…
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Experimental observation of anomalous trajectories of single photons Open
A century after its conception, quantum mechanics still hold surprises that contradict many "common sense" notions. The contradiction is especially sharp in case one consider trajectories of truly quantum objects such as single photons. Fr…
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Topological Quantum Materials for Realizing Majorana Quasiparticles Open
In the past decade, basic physics, chemistry, and materials science research on topological quantum materials and their potential use to implement reliable quantum computershas rapidly expanded to become a major endeavor. A pivotal goal of…
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Observation of the quantum Gouy phase Open
Controlling the evolution of photonic quantum states is crucial for most quantum information processing and metrology tasks. Due to its importance, many mechanisms of quantum state evolution have been tested in detail and are well understo…
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Self-organized topological insulator due to cavity-mediated correlated tunneling Open
Topological materials have potential applications for quantum technologies. Non-interacting topological materials, such as e.g., topological insulators and superconductors, are classified by means of fundamental symmetry classes. It is ins…