Papers nuevos de Física
En los últimos 3 días aparecieron 300 papers nuevos de Física. Pipette los leyó todos y estos son los 60 con más interés, avance real y afirmaciones prudentes. Cada uno muestra la oración de su resumen que dice el resultado principal, tal como la escribieron sus autores.
Lo mejor de los últimos 3 días
Imaging with GeV muons produced via laser-wakefield-accelerated electrons
To our knowledge, this represents the first demonstration of imaging dominated by an artificial, laser-driven muon beam.
PreprintDice ser un gran avanceImaging an obstructed Wannier orbital
By measuring the amplitude and phase of the acoustic pressure field, we map the orbital's -like structure and locate its Wannier center in a void between lattice sites---providing the first phase-resolved image of an obstructed Wannier orbital.
PreprintDice ser un gran avanceLu+ optical frequency references with accuracy verified at the 19th digit
Here we report two 176Lu+ single-ion optical frequency references, each with evaluated fractional frequency uncertainty near 1 × 10−19, which are directly compared by correlation spectroscopy and demonstrate agreement, with a measured relative frequency difference of [−0.1 ± (5.7)stat ± (1.0)sys] × 10−19, where ‘stat’ and ‘sys’ indicate the statistical and systematic uncertainty, respectively.
Revista con revisión por paresDice ser un gran avanceUltrasensitive chiral detection by nonlinear chiroptics in spiral plasmonic metastructures surpasses linear limits
This work introduces a breakthrough in ultrasensitive chiral detection by combining nonlinear optics and tailored chiral plasmonics.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceUso en el mundo realObservation of thermally stable polar metallic state in perovskite nitride CeWN 3
In this study, we report a thermally stable polar-metal state in perovskite cerium tungsten nitride.
Revista con revisión por paresDice ser un gran avanceReprogrammable origami through bistable buckled hinges
Here, we introduce reprogrammable origami hinges that use bistable buckled shims to reversibly control their preferred folding direction.
PreprintClimate, Science, and the FCC: Think Clearly, Choose Wisely, Act Swiftly
Grounded in a clear and compelling scientific vision, it confronts emotionally charged imagery with orders of magnitude, distinguishes a project's footprint from its full balance sheet, considers the costs of postponing or abandoning it, and explores ways of reducing its impacts-including the still uncertain prospect of natural hydrogen.
PreprintInterés amplioFácil de leerAntiferroelectric hafnia down to the 2D limit
In this work, we demonstrate that single-crystalline hafnia, a lead-free CMOS-compatible material, exhibits antiferroelectricity under compressive-strain conditions.
Revista con revisión por paresDice ser un gran avanceUso en el mundo realSelf-organized optofluidic locking enables stable single-frequency lasing in dynamic liquid media
Here, we demonstrate that nonequilibrium fluid fluctuations can instead be harnessed to stabilize lasing through optofluidic locking.
Revista con revisión por paresUso en el mundo realDense pentacene cocrystal demonstrates room-temperature coherent control
Despite this density, DHP/Pc exhibits microsecond spin coherence, room-temperature optically detected magnetic resonance and coherent control.
PreprintQuantum computational advantage in random-circuit sampling on IBM superconducting quantum computers
To our knowledge, this is the first demonstration of quantum advantage for a vanilla random-circuit sampling on a commercially and broadly accessible quantum processor that most non-expert quantum computer users can easily replicate.
PreprintAfirmaciones fuertes, leer con cuidadoDice ser un gran avance100 million photons per second from a single organic molecule
The device reaches a collection efficiency of 97% and delivers 100 million photons per second into the first lens.
PreprintColossal magnetic tunability of excitons in 2D van der Waals magnetic semiconductor CrSBr
Here, we report the observation of remarkably strong magneto-optical effects in the 2D magnetic semiconductor CrSBr that allow probing its magnetic order with unprecedented sensitivity.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceAn information-theoretic proof of the Planckian bound for thermalization
We formulate thermalization as a process that prepares states close to the corresponding thermal ensemble for a set of distinct Hamiltonians, and show that quantum mechanics imposes a universal lower bound τ ≥ τ Pl /2 on the thermalization time τ at finite temperature.
Revista con revisión por paresDice ser un gran avanceA principal-stress rule for cell division in epithelia
We show that as epithelia densify, this geometric rule is superseded by a mechanical one: cells divide along the principal axis of anisotropic stress, independently of the isotropic stress state.
Revista con revisión por paresQuantum many-body mixed phase space revealed by hybrid feedback control
The stabilized trajectories reveal signatures of a quantum many-body mixed phase space emerging from nonlinear variational dynamics, without a direct analogue in few-body quantum systems described by a small number of effective degrees of freedom.
Revista con revisión por paresDice ser un gran avanceIncipient superconductivity and tunable Chern insulators in twisted Bernal bilayer-trilayer graphene
Here we report incipient superconductivity and tunable Chern insulators in twisted Bernal bilayer-trilayer graphene encapsulated by hexagonal boron nitride.
PreprintDice ser un gran avanceExtracting hydrogel properties by watching hydrogel particles moving through solid ice
Here, we show how one can use this behavior to measure -- with extremely high resolution -- a range of different hydrogel transport properties, and how these change as a hydrogel deswells.
PreprintA low-temperature entropy source for on-chip true random number generation: universal robustness beyond device quality
We demonstrate a counterintuitive finding: a single current-biased Josephson junction, regardless of its parameter quality, can serve as a cryptographic-grade true random number generator.
PreprintAfirmaciones fuertes, leer con cuidadoUso en el mundo realUniversal scaling laws for correlated decay of many-body quantum systems
Here we exploit this correspondence to establish rigorous and general upper and lower bounds on the maximal decay rate.
Revista con revisión por paresZero-forward Kerker scattering via synthesized complex-frequency excitation
Here, we show, both theoretically and experimentally, how zero-forward Kerker scattering can be effectively synthesized by a weighted superposition of readily accessible real-frequency responses.
PreprintUso en el mundo realPathway to optical-cycle dynamic photonics: extreme electron temperatures in transparent conducting oxides
We theoretically demonstrate that transparent conducting oxides (TCOs) exhibit oscillatory and sign-reversing dynamic modulation in transmittance on the order of a few optical cycles under extreme electron temperatures, providing a possible explanation for TCO dynamics observed in earlier experiments.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceObservation of symmetry breaking in time-varying scattering systems
Here we demonstrate a universal symmetry-breaking transition in a periodically driven finite scattering system.
PreprintAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceHigher-Order Competition as a Minimal Mechanism for Spatial Pattern Diversity in Population Dynamics
We show that negative feedback alone generates the diversity of self-organized shapes usually attributed to scale-dependent activation-inhibition.
PreprintQuantum noise spectroscopy of nanoscale charge defects in silicon carbide at room temperature
We report real-time, nanoscale observation of single-charge tunneling dynamics at room temperature in 4H-SiC by monitoring the random telegraph noise using optically detected magnetic resonance.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realProgrammable photonic unitary processor enables parameterized differentiable long-haul spatial division multiplexed transmission
A programmable photonic unitary processor for compensating modal dispersion allows long-haul (1,300 km) high-quality data transmission over a three-mode fibre.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realJamming-controlled stochasticity in metal-insulator switching
Sub-threshold currents erase the short-term memory defined by the nano-domain distribution, recovering stochastic switching, thus offering a path for in-device learning.
Revista con revisión por paresUso en el mundo realMarangoni-overriding flow in laser-irradiated particle-capped droplets
Here, we report an overriding of this flow in laser-irradiated droplets capped with a jammed particle layer, where particles migrate along the interface toward the apex of reduced surface tension, against the thermal gradient, via a propagating unjamming front.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoMicrobubble emission boiling reinterpreted: Condensation-driven oscillations enable heat transfer beyond the critical heat flux
Under sufficient subcooling, rapid condensation intercepts vapor coalescence, redirecting the postinstability evolution toward high-frequency, collapse-driven convection that continuously renews the surface, a state we identify as condensation-driven oscillatory boiling (COB).
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoSyndrome measurements enable deterministic fault-tolerant gates
Two Pauli rotations, followed by syndrome measurement and Clifford feed-forward, then implement a deterministic logical gate on every stabilizer code of distance at least two, in a suitable logical basis.
PreprintDice ser un gran avanceFundamental Physics at the Frontier of Noisy Quantum Computation
This thesis presents several advancements in the use of quantum simulation and quantum information to probe fundamental physics.
PreprintProbing picosecond depairing currents in type-II superconductors
Here we show that picosecond electrical pulses, which act on timescales too short for vortices to move, drive supercurrents up to the intrinsic depairing limit.
Revista con revisión por paresUso en el mundo realEmergent memory in cell-like active systems
We show that when the self-propulsion depends on internal variables with their own complex dynamics–modulated by local environmental cues– environmental memory spontaneously emerges and gives rise to new classes of behaviours.
Revista con revisión por paresEmergent charge crystallization and frustration in a particle anti-spin ice
Here, we report the realization of an “anti-spin ice” in which not only the ice rule does not hold, but its opposite is true as the system seeks to maximize, rather than minimize, spin ice charges.
Revista con revisión por paresString-breaking dynamics in a quantum simulator
We find that charge pairs appear near the string edges and subsequently spread out into the bulk, revealing a mechanism for dynamical string breaking distinct from the conventional Schwinger mechanism.
Revista con revisión por paresElectro-optic modulation of coherent and incoherent mid-IR radiation in two-dimensional arrays
Here, we present an electrically addressable metasurface for modulation of coherent and incoherent mid-IR radiation in two spatial dimensions.
Revista con revisión por paresUso en el mundo realAll-optical control of nonlinear emission from resonant metasurfaces
Here, we introduce an ultrathin metasurface platform that enables dynamic reconfiguration of nonlinear functionality in a contactless fashion.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoUso en el mundo realSpeed up of passive tracers in mixtures with active chemical reactions
By studying a thermodynamically consistent model of chemical reactions in mixtures, we show that reactions provide an additional relaxation pathway that suppresses interaction-induced memory, reducing the drag on tracers and restoring their diffusivity toward the value expected in the absence of solutes.
PreprintEnd-to-end design for full-color and large field-of-view computational holographic displays
Joint optimization of the hologram, eyepiece optics, and component positions across polychromatic wavelengths and multiple depth channels corrects chromatic dispersion, optical aberrations, and geometric distortions while incorporating eyebox deployment, depth representation, and hologram bandwidth, enabling apochromatic and high-performance holographic displays.
Revista con revisión por paresUso en el mundo realIntegration of p-type Cr2O3 on Ultra-Wide Bandgap AlGaN PolFETs with 2.5 kV Breakdown Voltage
We demonstrate UWBG AlGaN polarization-graded field-effect transistors (PolFETs) incorporating room-temperature sputtered p-type oxide Cr2O3 as a P-N heterojunction gate, enabling superior field management for lateral device breakdown compared to conventional Schottky gates.
PreprintUso en el mundo realPlane-Wave Photon-Fock Cavity QED-DFT: Chiral-Cavity-Induced Topology in Graphene
This PWFock construction puts first-principles cavity QED of periodic solids on the same footing as the Fock-space coupled-cluster and configuration-interaction methods already developed for molecules, opening hitherto inaccessible systems---materials in a linear or chiral cavity, in particular---to first-principles plane-wave calculations.
PreprintManipulation of ferromagnetism with a light-driven nonlinear Edelstein-Zeeman field
Here we demonstrate non-thermal, ultrafast optical control of ferromagnetism in the centrosymmetric van der Waals semiconductor Cr2Ge2Te6 via a resonant nonlinear Edelstein effect.
Revista con revisión por paresTunable hyperbolic metamaterials for brightening single-photon emission
These results establish the radiative Purcell factor as a more reliable figure of merit than the conventional Purcell factor for engineering quantum emitters, and provide a practical route toward actively tunable, bright single-photon sources based on hyperbolic metamaterials.
PreprintUso en el mundo realAltermagnetic Kondo Logic via Floquet Symmetry Conversion
We show that an in-plane AC field converts the hidden altermagnetic spin splitting into a locally detectable spin-dependent hybridization channel, which is further amplified by Kondo correlations into a novel altermagnetic Kondo effect.
PreprintTransient chaos in the self-organization of dissipative optical solitons
Here, we experimentally demonstrate transient chaos during the self-organization of dissipative optical solitons in a mode-locked fiber laser.
Revista con revisión por paresMagnetic graphs for cavity quantum electrodynamics
Here we propose a magnetic graph model for single-atom cavity QED that offers a unified description of quantum dynamics from the weak- to the ultrastrong-coupling regime via graph connectivity.
Revista con revisión por paresObservation of Universal Quantum Chaos at Shallow Depths
Here we show, theoretically and experimentally, that universality emerges already at shallow depths in chaotic quantum circuits.
PreprintFully passive monolithic silicon quantum photonic circuit for entangled photon-pair generation
Here, we demonstrate a fully integrated silicon quantum photon-pair source operating without active tuning of any component.
PreprintNon-Hermitian multimode interferometry
By revealing how exceptional-point-assisted interference reshapes the canonical geometries, our findings transfer central paradigms of non-Hermitian spectroscopy into the interferometric setting, and establish exceptional-point interferometry as a new platform-independent paradigm for general-purpose precision sensing, applicable from on-chip photonics to macroscopic observatories.
PreprintAfirmaciones fuertes, leer con cuidadoGlobal Framework for Dynamics and Criticality of Bound States in the Continuum
Here we develop a global symmetry-equivariant theory for the dynamics of nondegenerate and degenerate BICs.
PreprintNon-Abelian sheaf quantum LDPC codes: good and magical
In this work, we develop a general framework for constructing non-Abelian quantum low-density parity-check (qLDPC) codes by gauging sheaf codes via cup products and use it to obtain families with constant encoding rate and linear distance.
PreprintTwo-dimensional topological quantum chemistry and catalog of topological materials
We found 4073 topological or obstructed entries, including 905 topological insulators and 1003 obstructed atomic insulators, greatly expanding the library of such materials in two dimensions.
Revista con revisión por paresTopological-Insulator Heterophase Gate Stacks for Transistor Electrostatics
These results identify the position and electronic character of the gate-side screening boundary as additional design variables for transistor electrostatics beyond nominal dielectric capacitance.
PreprintUso en el mundo realRevisiting Aristarchus's method to estimate the ratio of the distances from Earth to the Sun and the Moon
We present here the construction of a simple instrument, basically a tube that, by projecting its shadow, that allows one to estimate the Sun-Earth-Moon angle at the moment of first (or last) quarter.
PreprintInterés amplioA Proof of Shor's Orthogonal-Measurement Conjecture and the Structure of Information-Optimal Quantum Measurements
For faithful ensembles, an affine information bound is exact precisely when this algebra is commutative; its joint spectral measurement is then optimal, and every optimal finite POVM refines it.
PreprintCódigo disponibleAll you need is the universal correlation detector: A unified approach to universalize communication protocols over quantum channels
These results turn universal correlation detection into a systematic tool for universal protocol design, providing a unified route to designing capacity-achieving protocols for many communication tasks over unknown quantum channels.
PreprintTopological memory of nonreciprocal scattering singularities
Here, we experimentally demonstrate topological memory emerging from hysteresis-driven dynamics in a nonreciprocal microwave scattering system.
Revista con revisión por paresAfirmaciones fuertes, leer con cuidadoTeaching an LLM agent to fit XRR curves with X-Ray Calc 3
It was demonstrated that the skill recovered the mean period within 0.3 {\AA} of the expert's fits and the period drift through the stack on both W/B4C specimens, and the W and B4C thicknesses within 1 {\AA} on one of them.
PreprintClassical Cellular Automaton for Measurement-Only Entanglement Transitions
We introduce a generalized classical long-range stochastic cellular automaton that exactly captures the entanglement dynamics and transitions of a measurement-only monitored quantum system.
PreprintTorchFDTD: GPU-accelerated finite-difference time-domain simulation with discrete adjoints and host-streamed execution for photonic inverse design
The time-domain adjoint of a device with tens of millions of cells thus becomes available on a single workstation GPU.
PreprintCódigo disponible