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| Open AccessThe promises and challenges of many-body quantum technologies: A focus on quantum engines
Can many-body systems be beneficial to designing quantum technologies? We address this question by examining quantum engines, where recent studies indicate potential benefits through the harnessing of many-body effects, such as divergences close to phase transitions. However, open questions remain regarding their real-world applications.
- Victor Mukherjee
- & Uma Divakaran
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Article
| Open AccessQuantum phase synchronization via exciton-vibrational energy dissipation sustains long-lived coherence in photosynthetic antennas
Photosynthesis in biological systems occurs in a noisy environment that reduces the lifetime of coherences in the excitation energy transfer. Here the author demonstrate that long-lasting coherences are protected by quantum phase synchronization, realized in dimers by exciton-vibrational coupling where energy dissipation occurs predominantly in resonant anti-symmetric collective modes.
- Ruidan Zhu
- , Wenjun Li
- & Yuxiang Weng
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Article
| Open AccessProbing the tunable multi-cone band structure in Bernal bilayer graphene
Bernal-stacked bilayer graphene (BLG) has been extensively studied due to its tunable band gap and emerging electronic properties, but its low-energy band structure remains debated. Here, the authors report magnetotransport measurements of Bernal BLG, showing evidence of four Dirac cones and electrically induced topological transitions.
- Anna M. Seiler
- , Nils Jacobsen
- & R. Thomas Weitz
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Article
| Open AccessSpiral packing and chiral selectivity in model membranes probed by phase-resolved sum-frequency generation microscopy
The properties of lipid membranes are intimately controlled by their complex heterogeneous structure. Here, the authors use phase-resolved sum-frequency generation microscopy to fully determine the hierarchical lipid packing from the molecular to the mesoscopic scale.
- Alexander P. Fellows
- , Ben John
- & Martin Thämer
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Article
| Open AccessViolation of emergent rotational symmetry in the hexagonal Kagome superconductor CsV
3 Sb5 Superconductors with hexagonal symmetry are expected to be isotropic particularly near the critical temperature Tc, a property called emergent rotational symmetry (ERS). Here, the authors use calorimetry to study the hexagonal kagome superconductor CsV3Sb5 and find a violation of the expected ERS, hinting at realization of exotic superconductivity.
- Kazumi Fukushima
- , Keito Obata
- & Shingo Yonezawa
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Article
| Open AccessDynamics of collective cooperation under personalised strategy updates
Collective cooperation is found across many social and biological systems. Here, the authors find that infrequent hub updates promote the emergence of collective cooperation and develop an algorithm that optimises collective cooperation with update rates.
- Yao Meng
- , Sean P. Cornelius
- & Aming Li
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Article
| Open AccessNonlocality activation in a photonic quantum network
Entangled local states can be made capable of violating Bell inequalities via nonlocality activation. Typical theoretical approaches require processing many copies of the original state and performing joint measurements on the ensemble. Here, instead, the authors experimentally demonstrate how to do so using a single copy of the state, broadcasting it to two spatially separated parties within a three-node network.
- Luis Villegas-Aguilar
- , Emanuele Polino
- & Geoff J. Pryde
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Article
| Open AccessThe fluidic memristor as a collective phenomenon in elastohydrodynamic networks
Collective behavior of nonlinear soft valves forming fluid flow networks is not well understood. The authors reveal the mechanisms underlying the collective behavior of soft flow networks with negative differential resistance elements.
- Alejandro Martínez-Calvo
- , Matthew D. Biviano
- & Miguel Ruiz-García
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Article
| Open AccessEnhancements of electric field and afterglow of non-equilibrium plasma by Pb(ZrxTi1−x)O3 ferroelectric electrode
The physics of how ferroelectric materials enhance plasma properties and discharge is unclear. Here, the authors enhance surface charge, electric field and afterglow of nonequilibrium plasma by ferroelectric barrier discharge with evidence from laser diagnostics.
- Yijie Xu
- , Ning Liu
- & Yiguang Ju
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Article
| Open AccessThe nature of non-phononic excitations in disordered systems
The frequency scaling exponent of low-frequency vibrational excitations in glasses remains controversial in the literature. Here, Schirmacher et al. show that the exponent depends on the statistics of the small values of the local stresses, which is governed by the detail of interaction potential.
- Walter Schirmacher
- , Matteo Paoluzzi
- & Giancarlo Ruocco
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Article
| Open AccessImpact of molecular symmetry on crystallization pathways in highly supersaturated KH2PO4 solutions
The molecular symmetry of solute structure in aqueous solutions is a key clue to understand Ostwald’s step rule. Here, the authors show that molecular symmetry and its structural evolution can govern the crystallization pathways in aqueous solutions.
- Yong Chan Cho
- , Sooheyong Lee
- & Geun Woo Lee
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Article
| Open AccessA bionic self-driven retinomorphic eye with ionogel photosynaptic retina
Luo et al. report a self-driven hemispherical retinomorphic eye that employs ionogel heterojunctions as photoreceptors. This photoreceptor exhibits broadband photosynapse, high conformability, retinal transplantation, and visual restoration for re-time optical imaging and motion tracking.
- Xu Luo
- , Chen Chen
- & Wei Huang
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Article
| Open AccessGiant Faraday rotation in atomically thin semiconductors
Here, the authors perform Faraday rotation spectroscopy around the excitonic transitions in hBN-encapsulated WSe2 and MoSe2 monolayers, and interlayer excitons in MoS2 bilayers. They measure a large Verdet constant - 1.9 × 107 deg T−¹cm−¹ for monolayers, and attribute it to the giant oscillator strength and high g-factor of the excitons.
- Benjamin Carey
- , Nils Kolja Wessling
- & Ashish Arora
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Matters Arising
| Open AccessReply to: Quantum mechanical rules for observed observers and the consistency of quantum theory
- Lídia del Rio
- & Renato Renner
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Article
| Open AccessQuantum simulation of the bosonic Kitaev chain
Interesting non-Hermitian quantum dynamics can be accessed in analogue quantum simulators consisting of Hermitian bosonic systems with squeezing and antisqueezing terms. Here, the authors use a coplanar waveguide resonator connected to a SQUID to simulate the bosonic version of the Kitaev chain.
- Jamal H. Busnaina
- , Zheng Shi
- & Christopher M. Wilson
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Article
| Open AccessAnderson critical metal phase in trivial states protected by average magnetic crystalline symmetry
The authors identify a novel delocalization mechanism for topologically trivial obstructed insulators. In transitioning from two topologically trivial states, where one would expect Anderson’s localization to take place, a delocalized ‘critical metal phase’ appears.
- Fa-Jie Wang
- , Zhen-Yu Xiao
- & Zhi-Da Song
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Matters Arising
| Open AccessQuantum mechanical rules for observed observers and the consistency of quantum theory
- Alexios P. Polychronakos
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Article
| Open AccessThree-dimensional spin-wave dynamics, localization and interference in a synthetic antiferromagnet
The techniques we typically employ to study spin-waves in magnetic materials, such as Brillouin Light Scattering, are two-dimensional. Spin waves, however, are manifestly three-dimensional. Here, Girardi et al. succeed in such three-dimensional imaging of spin waves in a synthetic antiferromagnet using Time-Resolved Soft X-ray Laminography.
- Davide Girardi
- , Simone Finizio
- & Edoardo Albisetti
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Article
| Open AccessFast joint parity measurement via collective interactions induced by stimulated emission
Parity detection is essential in quantum error correction. Here, authors propose a reliable joint parity measurement (JPM) scheme inspired by stimulated emission and experimentally implement the weight-2(4) JPM scheme in a tunable coupling superconducting circuit, which shows comparable performance to the standard CNOT-gate based scheme.
- Sainan Huai
- , Kunliang Bu
- & Yicong Zheng
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Article
| Open AccessWide field-of-hearing metalens for aberration-free sound capture
Achieving a wide angular response in single layer acoustic metalenses is challenging. By leveraging perfect acoustic symmetry conversion, the authors realize an aberration free metalens with a wide field-of-hearing, up to 140 degrees.
- Dongwoo Lee
- , Beomseok Oh
- & Junsuk Rho
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Article
| Open AccessNonlinear optical diode effect in a magnetic Weyl semimetal
Here the authors demonstrate a broadband nonlinear optical diode effect and its electric control in the magnetic Weyl semimetal CeAlSi. Their findings advance ongoing research to identify novel optical phenomena in topological materials.
- Christian Tzschaschel
- , Jian-Xiang Qiu
- & Su-Yang Xu
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Article
| Open AccessFerrielectricity controlled widely-tunable magnetoelectric coupling in van der Waals multiferroics
Two-dimensional multiferroics with effective magnetoelectric coupling has not been realized. Here, the authors find a magnetoelectric coupling mechanism in two-dimensional CuCrP2S6 interlocked with heterogeneous ferrielectric state.
- Qifeng Hu
- , Yuqiang Huang
- & Yi Zheng
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Article
| Open AccessThermodiffusive desalination
Current desalination technologies are energy intensive and suffer from membrane degradation and fouling. Here, authors propose and explore the potential of thermodiffusion as a means of membrane-free, single-phase thermal desalination. A pathway towards a feasible thermodiffusive desalination is provided.
- Shuqi Xu
- , Alice J. Hutchinson
- & Juan F. Torres
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Article
| Open AccessAsymmetric magnetization switching and programmable complete Boolean logic enabled by long-range intralayer Dzyaloshinskii-Moriya interaction
The authors find a magnetization switching mechanism and the long-range intralayer Dzyaloshinskii-Moriya interaction effect, which enables asymmetric magnetization switching and complete Boolean logic operations.
- Qianbiao Liu
- , Long Liu
- & Lijun Zhu
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Article
| Open AccessThe impact of low-mode symmetry on inertial fusion energy output in the burning plasma state
Recent improvements in the indirect-drive inertial confinement fusion experiments include the achievement of burning plasma state. Here the authors report the scaling of neutron yield in a burning plasma of Deuterium-Tritium fusion reaction by including the mode-2 asymmetry.
- J. E. Ralph
- , J. S. Ross
- & G. B. Zimmerman
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Article
| Open AccessEmissive brightening in molecular graphene nanoribbons by twilight states
The authors demonstrate that the band structure of graphene nanoribbons is modulated by cove edges, brightening the luminescence 4-fold via emission from otherwise dark twilight states. High spectral resolution of the optical response reveals strong vibron-electron coupling
- Bernd K. Sturdza
- , Fanmiao Kong
- & Robin J. Nicholas
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Article
| Open AccessRewritable printing of ionic liquid nanofilm utilizing focused ion beam induced film wetting
With a helium focused ion beam, an ionic liquid can undergo induced wetting to flow into a desired pattern on a surface in a controllable, rewriteable manner. Combined with electrochemical deposition, patterned solid materials can be produced.
- Haohao Gu
- , Kaixin Meng
- & Hao Wang
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Article
| Open AccessCompact meta-differentiator for achieving isotropically high-contrast ultrasonic imaging
High-contrast ultrasonic imaging holds significant importance in biomedical and engineering applications. Here, the authors present a compact spatial differentiator tailored for underwater isotropic edge-enhanced imaging, facilitating the realization of high-contrast ultrasonic imaging.
- Yurou Jia
- , Suying Zhang
- & Xiaojun Liu
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Article
| Open AccessObservation of Kekulé vortices around hydrogen adatoms in graphene
Kekulé vortices in hexagonal lattices can host fractionalized charges at zero magnetic field, but have remained out of experimental reach. Here, the authors report a Kekulé vortex in the local density states of graphene around a chemisorbed hydrogen adatom.
- Yifei Guan
- , Clement Dutreix
- & Vincent T. Renard
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Article
| Open AccessIntercavity polariton slows down dynamics in strongly coupled cavities
Band engineering in optics allows the design of unconventional forms of light with potential optoelectronic applications. Here, the authors realize slow-light intercavity polaritons in an array of coupled cavities, the photonic architecture enables the spatial segregation of photons and excitons
- Yesenia A. García Jomaso
- , Brenda Vargas
- & Giuseppe Pirruccio
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Article
| Open AccessAluminum corrosion–passivation regulation prolongs aqueous batteries life
Aqueous batteries have a short lifespan due to Al current collector corrosion and Li loss from side reactions on the anode. Here, the authors propose a prototype of self-prolonging aqueous Li-ion batteries by introducing hydrolyzation-type anodic additives to regulate Al corrosion-passivation.
- Binghang Liu
- , Tianshi Lv
- & Liumin Suo
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Article
| Open AccessSwitching the spin cycloid in BiFeO3 with an electric field
Previous understanding of the coupling between ferroelectric structure and magnetic texture in BiFeO3 has relied on mesoscale measurements. Here, the authors image coupling directly, showing a complex spin cycloid controlled with electric field.
- Peter Meisenheimer
- , Guy Moore
- & Ramamoorthy Ramesh
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Article
| Open AccessIntrinsic exchange biased anomalous Hall effect in an uncompensated antiferromagnet MnBi2Te4
Exchange bias occurs in a variety of magnetic materials and heterostructures. The quintessential example occurs in antiferromagnetic/ferromagnetic heterostructures and has been employed extensively in magnetic memory devices. Here, via a specific field training protocol, the authors demonstrate an exchange bias of up to 400mT in odd layered MnBi2Te4.
- Su Kong Chong
- , Yang Cheng
- & Kang L. Wang
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Article
| Open AccessShaping active matter from crystalline solids to active turbulence
Earlier research has shown that controlling activity in the active matter can lead to either a phase change or a laminar-turbulent transition in active fluids. Authors demonstrate that it is possible to control both the phase transitions between solid, liquid, and gas states and the laminar-to-turbulent transitions in fluid phases by adjusting the activity of a phoretic medium.
- Qianhong Yang
- , Maoqiang Jiang
- & Lailai Zhu
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Article
| Open AccessEnhanced polarization switching characteristics of HfO2 ultrathin films via acceptor-donor co-doping
Ferroelectric HfO2 is faced with an oxygen vacancy dilemma, which favors the polar phase but harm to switching behaviors. Here, the authors propose a donor-acceptor co-doping method to enhance polarization switching characteristics of the HfO2 films.
- Chao Zhou
- , Liyang Ma
- & Zuhuang Chen
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Article
| Open AccessEnhancement of electrocatalysis through magnetic field effects on mass transport
Magnetic fields can enhance electrocatalysis, yet its effect on mass transport has been overlooked. Here, the authors track the motion induced on the electrolyte ions, demonstrating that mass transport effects can double the catalyst activity with low reactant availability, as in oxygen reduction.
- Priscila Vensaus
- , Yunchang Liang
- & Magalí Lingenfelder
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Article
| Open AccessUltrafast photoinduced C-H bond formation from two small inorganic molecules
The formation of C–H bonds via reaction of small inorganic molecules is of great interest for understanding the transition from inorganic to organic matter, but the detailed mechanisms remain elusive. Here, the authors demonstrate real-time visualization and coherent control of the ultrafast C–H bond formation dynamics in a light-induced bimolecular reaction from inorganic species.
- Zhejun Jiang
- , Hao Huang
- & Jian Wu
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Article
| Open AccessPassive frequency comb generation at radiofrequency for ranging applications
In contrast to the commonly studied optical frequency combs, here, the authors demonstrate a radio frequency system able to wirelessly and passively generate frequency combs as a battery-free solution for far-field ranging of unmanned vehicles in GPS-denied settings.
- Hussein M. E. Hussein
- , Seunghwi Kim
- & Cristian Cassella
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Article
| Open AccessReconstructing the evolution history of networked complex systems
Evolution processes of complex networked systems in biology and social sciences, and their underlying mechanisms, still need better understanding. The authors propose a machine learning approach to reconstruct the evolution history of complex networks.
- Junya Wang
- , Yi-Jiao Zhang
- & Yanqing Hu
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Article
| Open AccessThree-stage ultrafast demagnetization dynamics in a monolayer ferromagnet
Ultrafast demagnetization refers to the process where an intense optical drive can destroy the magnetic order in a magnetic material on a femto-second timescale. Here, Wu et al resolve a three-stage ultrafast demagnetization process in a monolayer of Fe3GeTe2.
- Na Wu
- , Shengjie Zhang
- & Sheng Meng
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Article
| Open AccessDeuteration-enhanced neutron contrasts to probe amorphous domain sizes in organic photovoltaic bulk heterojunction films
The use of conventional X-ray scattering techniques is challenging to detect donor-acceptor contrast within amorphous intermixing regions. Here, the authors apply neutron scattering and targeted deuteration to enhance the contrast by one order of magnitude and reveal short-range aggregations of d-Y6.
- Guilong Cai
- , Yuhao Li
- & Xinhui Lu
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Article
| Open AccessCorrelating fluorescence microscopy, optical and magnetic tweezers to study single chiral biopolymers such as DNA
It is hard to correlate force, torque and localization information. The authors report Combined Optical and Magnetic BIomolecule TWEEZers, COMBI-Tweez, that integrates optical trapping, time-resolved electromagnetic tweezers, and fluorescence microscopy: they demonstrate visualisation of higher order structural motifs in DNA.
- Jack W. Shepherd
- , Sebastien Guilbaud
- & Mark C. Leake
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Article
| Open AccessEnhancing combinatorial optimization with classical and quantum generative models
Solving combinatorial optimization problems using quantum or quantum-inspired machine learning models would benefit from strategies able to work with arbitrary objective functions. Here, the authors use the power of generative models to realise such a black-box solver, and show promising performances on some portfolio optimization examples.
- Javier Alcazar
- , Mohammad Ghazi Vakili
- & Alejandro Perdomo-Ortiz
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Article
| Open AccessReversible non-volatile electronic switching in a near-room-temperature van der Waals ferromagnet
The controlled manipulation of the topological phases of electronic materials is a central goal of modern condensed matter research. Here, the authors demonstrate controllable switching between two distinct topological phases in a layered ferromagnet via thermal cycling.
- Han Wu
- , Lei Chen
- & Ming Yi
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Article
| Open AccessCharge state-dependent symmetry breaking of atomic defects in transition metal dichalcogenides
The microscopic structure of quantum defects in 2D materials is crucial to understand their optical properties and spin-photon interface. Here, the authors report the direct imaging of charge state-dependent symmetry breaking of sulfur vacancies and rhenium dopants in 2D MoS2, showing evidence of a Jahn-Teller effect.
- Feifei Xiang
- , Lysander Huberich
- & Bruno Schuler
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Article
| Open AccessRaman time-delay in attosecond transient absorption of strong-field created krypton vacancy
The advent of isolated attosecond XUV pulse sources marks a new era in attosecond science, pivotal for the investigation of core electron dynamics. Here the authors discover that the coherent Raman coupling between the cation states leads to extra timedelay between different transition channels by applying the attosecond transient absorption spectroscopy on the investigation of complex dynamics of strong field ionization of Krypton.
- Li Wang
- , Guangru Bai
- & Zengxiu Zhao
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Article
| Open AccessStrongly interacting Rydberg atoms in synthetic dimensions with a magnetic flux
Weak and non-interacting systems have been previously explored in synthetic dimensions. Here the authors demonstrate strong atomic interaction in synthetic dimensions using an array of Rydberg atoms.
- Tao Chen
- , Chenxi Huang
- & Bryce Gadway
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Article
| Open AccessBenchtop mesoSPIM: a next-generation open-source light-sheet microscope for cleared samples
The demand to image large biological samples at high resolution requires improvement in current light-sheet microscopy tools. Here, the authors present an improved, benchtop mesoSPIM with a significantly increased field-of-view, improved resolution and improved throughput.
- Nikita Vladimirov
- , Fabian F. Voigt
- & Fritjof Helmchen
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Article
| Open AccessTopological minibands and interaction driven quantum anomalous Hall state in topological insulator based moiré heterostructures
Moiré patterns have been experimentally observed in heterostructures comprised of topological insulator films. Here, the authors propose that topological insulator-based moiré heterostructures could be a host of isolated topologically non-trivial moiré minibands for the study of the interplay between topology and correlation.
- Kaijie Yang
- , Zian Xu
- & Chao-Xing Liu
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