Secret-key distillation from quantum states and channels is a central task of interest in quantum information theory, as it facilitates private communication over a quantum network. Here, we study the task of secret-key distillation from bipartite states and point-to-point quantum channels using local operations and one-way classical communication (one-way LOCC). We employ the resource theory of unextendible

This paper presents a model-agnostic search for narrow resonances in the dijet final state in the mass range 1.8–6 TeV. The signal is assumed to produce jets with substructure atypical of jets initiated by light quarks or gluons, with minimal additional assumptions. Search regions are obtained by utilizing multivariate machine-learning methods to select jets with anomalous substructure. A collection

We show that collisions between particles free falling from infinity and a disk of material plunging off the retrograde innermost stable circular orbit of a near-extremal Kerr black hole is the unique astronomically natural way in which to create a gravitational particle accelerator with center of mass energies at the tens to hundreds of teraelectronvolt range; in other words, a supercollider. Published

When a column of water drains from a vertical tube, it often leaves behind a trailing film that forms intricate, axisymmetric liquid structures. Using high-speed imaging and first-principles modeling, we investigate the formation and breakup of these fluted films and demonstrate that their diverse morphologies arise from the evolving balance of inertia, surface tension, gravity, and viscous forces

We address the challenge of incorporating non-Markovian electronic friction effects in quantum-mechanical approximations of dynamical observables. A generalized Langevin equation is formulated for ring-polymer molecular dynamics rate calculations, which combines electronic friction with a description of nuclear quantum effects for adsorbates on metal surfaces. An efficient propagation algorithm is

We construct the first binary black hole solutions of Einstein-Maxwell theory in asymptotically anti–de Sitter space. The attractive force between the two black holes is balanced by the addition of a background electric field, sourced at the conformal boundary. There is a continuous family of bulk solutions for a given boundary profile and temperature, suggesting there is continuous nonuniqueness.

We propose a numerical method to estimate one-point functions and the free-energy density of conformal field theories at finite temperature by solving the Kubo-Martin-Schwinger condition for the two-point functions of identical scalars. We apply the method for the critical O(N) model for N=1, 2, 3 in 3≤d≤4. We find agreement with known results from Monte Carlo simulations and previous results for the

Collective oscillations in dense neutrino gases (flavor waves) are notable for their instabilities that cause fast flavor conversion. We develop a quantum theory of interacting neutrinos and flavor wave quanta, which are analogous to plasmons but also carry flavor. The emission or absorption of such flavor plasmons ψ, or “flavomons,” changes the neutrino flavor. When an angular crossing occurs, the

As analogues of compact objects, solitons have attracted significant attention. We reveal that cylindrical Q strings exhibit a dynamical instability to perturbations with wavelengths exceeding a threshold λ>λc. This instability can destroy the invariance in the cylindrical direction, as a generation mechanism for Q balls, similar to the formation of droplets. As the interface of Q strings approaches

We performed the longest numerical-relativity neutrino-radiation magnetohydrodynamics simulation for a binary neutron star merger that extends to ≈1.5s after the merger. We consider the binary model that undergoes the prompt collapse to a black hole after the merger with asymmetric mass 1.25M⊙ and 1.65M⊙ and SFHo equation of state. We find the Poynting flux-driven collimated outflow as well as the

To explain the baryon asymmetry in the early universe via leptogenesis, quantum corrections to new particles are commonly invoked to generate the necessary CP asymmetry. We demonstrate, however, that a large CP asymmetry can already arise from standard model leptons. The mechanism relies on resummation of soft leptons at finite temperatures. The CP asymmetry, which is kinematically forbidden in vacuum

Ultralight dark photons are compelling dark matter candidates, but their allowed kinetic mixing with the standard model photon is severely constrained by requiring that the dark photons do not collapse into a cosmic string network in the early Universe. Direct detection in minimal production scenarios for dark photon dark matter is strongly limited, if not entirely excluded; discovery of sub-meV dark

We singled out the surface and bulk spin dynamics in magnetic hollow nanoparticles by means of nuclear magnetic resonance relaxometry. Experimental H1−NMR-dispersion curves (NMR-D), measured across a wide frequency range (104 Hz

In this review, we address the optical signatures of defects in two-dimensional transition metal dichalcogenides (2D TMDs), whether they occur unintentionally during growth or are deliberately introduced post-growth. We detail their primary responses as probed by photoluminescence (PL), magneto-PL, Raman, tip-enhanced PL and Raman, and nonlinear spectroscopies. Defects significantly impact the electronic

Developments in communication technologies depend on the parallel progress in materials innovation, data processing devices, and their strategic integration. Terahertz (THz) science and technology is the latest field to witness phenomenal growth in 6G communication and quantum materials devices. Such advancements depend on the ability to control both the amplitude and phase-shift of THz radiation,

It is still an open question if magnetoelectric coupling occurs at the atomic scale in multiferroic BiFeO3. Nuclear solid-state techniques monitor local fields at the atomic scale. Using such an approach, we show that, contrary to our own expectation, ferroelectric and magnetic ordering in bismuth ferrite (BiFeO3 or BFO) decouple at the unit-cell level. Time differential perturbed angular correlation

We present a full Batalin-Vilkovisky action in the component field formalism for N=1 supergravity in ten dimensions coupled to Yang-Mills multiplets. Published by the American Physical Society 2025

A major limitation of laser interferometers using continuous wave lasers are parasitic light fields, such as ghost beams, scattered or stray light, that can cause nonlinear noise. This is especially relevant for laser interferometric ground-based gravitational wave detectors. Increasing their sensitivity, particularly at frequencies below 10 Hz, is threatened by the influence of parasitic photons.

The stretching response of polymer chains fundamentally determines the mechanical properties of polymer networks. In this Letter, we develop a statistical mechanics model that incorporates both bond stretching and bond angle deformation, enabling accurate predictions of chain behavior up to large forces. We further propose a semianalytical deformable freely rotating chain (dFRC) model, which represents

We report a proof-of-principle experiment for a new method of temperature measurements in waveguide quantum electrodynamics experiments, allowing one to measure separately the temperature of global and local baths. The method takes advantage of collective states of two transmons located in the center of a waveguide. The Hilbert space of such a system forms two separate subspaces (bright and dark) that

Neural simulation-based inference (NSBI) is a powerful class of machine-learning-based methods for statistical inference that naturally handles high-dimensional parameter estimation without the need to bin data into low-dimensional summary histograms. Such methods are promising for a range of measurements, including at the Large Hadron Collider, where no single observable may be optimal to scan over

Exchange-coupled interfaces are pivotal in exploiting two-dimensional (2D) ferromagnetism. Due to the extraordinary correlations among charge, spin, orbital and lattice degrees of freedom, layered magnetic transition metal chalcogenides (TMCs) bode well for exotic topological phenomena. Here we report the realization of wafer-scale Cr2Te3 down to monolayer (ML) on insulating SrTiO3(111) and/or Al2O3(001)

Semiconductor devices demand materials that exhibit exceptional carrier and heat transport; however, such materials have remained exceedingly scarce. Using rigorous first-principles calculations, we identify tetragonal tantalum nitride (t-TaN) as a narrow bandgap semiconductor that uniquely achieves both high thermal conductivity (κ) and high carrier mobility (μ). At room temperature, t-TaN demonstrates

Ever since the advent of quantum mechanics, tunneling has been an intriguing topic and consequently extensively studied and utilized. Investigating both theoretically and experimentally the nonadiabatic tunneling in strong-field ionization across a wide range of laser intensities, we unravel under-the-barrier-recollision dynamics leading to Freeman resonances (FR). The under-the-barrier-recollision

The recent breakthroughs regarding the detection of compact binary mergers via gravitational waves opened up a new window to the Universe. Gravitational-wave models have been essential to this success since they are necessary to infer the properties of the compact binary system from the observational data. Next-generation detectors, such as the Einstein Telescope, will allow for more observations of

Polarons are crucial for charge transport in semiconductors, significantly impacting material properties and device performance. The dynamics of small polarons can be investigated using first-principles molecular dynamics. However, the limited timescale of these simulations presents a challenge for adequately sampling infrequent polaron hopping events. Here, we introduce a message-passing neural network

We report an extensive high-field study of atacamite Cu2Cl(OH)3, a material realization of quantum sawtooth chains with weak interchain couplings, in continuous and pulsed magnetic fields up to 58 T. In particular, we have mapped the entropy landscape for fields as high as 35 T and have identified a field-induced quantum critical point at 21.9(1) T for H∥c axis. The quantum critical point separates

The type IIB matrix model is conjectured to describe superstring theory nonperturbatively in terms of ten N×N bosonic traceless Hermitian matrices Aμ (μ=0,…,9), whose eigenvalues correspond to (9+1)-dimensional space-time. Quite often, this model has been investigated in its Euclidean version, which is well defined although the SO(9,1) Lorentz symmetry of the original model is replaced by the SO(10)

Correction to: Nature Physics https://doi.org/10.1038/s41567-025-02874-0, published online 7 April 2025.

Visual perception, memory, and adaptation processes are critical functions in biological systems that enhance responsiveness, improve survival fitness, and reduce information redundancy in complex environments. Therefore, the development of adaptive bionic vision systems with high efficiency, low complexity, and minimal energy consumption has become a key objective. However, most adaptive devices suffer

Structural superlubricity at incommensurate van der Waals interfaces leads to ultra-low friction coefficients. In this study, we try to apply a similar strategy to reduce the barrier of sliding ferroelectricity in van der Waals bilayers/multilayers with commensurate interfaces, since the writing speed in ferroelectric memories would be enhanced almost exponentially upon such reduction. A major challenge

For a long time, efficient and safe gene delivery has been a key issue in gene therapy. In particular, after the Nobel Prize in Chemistry for clustered regularly interspaced short palindromic repeat (CRISPR) technology in 2020, the focus on delivery systems for genome editing has grown. In this review, we introduce the recent trends in various CRISPR delivery systems. First, we explain the impact of

The advancement of flexible electrochemical energy storage (FEES) devices as prospective power sources for wearable and portable electronics has become a prominent subject of research. The improvement of high-capacity electrode materials presents a substantial possibility for these flexible devices. Prussian blue and its analogues (PBAs) are easily manufactured, low-cost, open in structure, stable

The equation of state of quantum chromodynamics with Nf=3 flavors is determined nonperturbatively in the range of temperatures between 3 and 165 GeV with a precision of about 0.5%–1.0%. The calculation is carried out by numerical simulations of lattice gauge theory discretized Wilson with shifted boundary conditions in the compact direction. At each given temperature the entropy density is computed

Broadband self-powered photodetectors have attracted great attention owing to their capacity to detect a wide range of wavelengths and save energy. However, the majority of existing broadband photodetectors are limited in their detection range by the material bandgap, making it difficult to achieve detection from ultraviolet to infrared wavelength, and the response performance is not uniform for each

We present a derivation and experimental implementation of a dimension-dependent contextuality inequality to certify both the quantumness and dimensionality of a given system. Existing methods for certification of the dimension of a quantum system can be cheated by using larger classical systems, creating a potential loophole in these benchmarks, or can in practice only be evaluated assuming pure quantum

We study the 1D Ising model with long-range interactions decaying as 1/r1+s. The critical model corresponds to a family of 1D conformal field theories whose data depend nontrivially on s in the range 1/2≤s≤1. The model is known to be described by a generalized free field with quartic interaction, which is weakly coupled near s=1/2 but strongly coupled near the short-range crossover at s=1. We propose

We present spin–orbit torque (SOT) field free magnetization switching and the detection of magnetization at room temperature using Pt and Sn alloys. Observations of the planar Hall effect and weak antilocalization provide evidence of topological features present in the PtSn4. The figures of merit of the spin-torque efficiency and spin-to-charge conversion (SCC) were estimated to be as large as 0.31

We study the directed transport of bosons along a one dimensional lattice in a dissipative setting, where the hopping is only facilitated by coupling to a Markovian reservoir. By combining numerical simulations with a field-theoretic analysis, we investigate the current fluctuations for this process and determine its asymptotic behavior. These findings demonstrate that dissipative bosonic transport

Bell nonlocality is a fundamental phenomenon of quantum physics as well as an essential resource for various tasks in quantum information processing. It is known that for the observation of nonlocality the measurements on a quantum system have to be incompatible, but the question of which incompatible measurements are useful, remained open. Here we prove that any set of incompatible measurements on

The exploitation of certification tools by end users represents a fundamental aspect of the development of quantum technologies as the hardware scales up beyond the regime of classical simulability. Certifying quantum networks becomes even more crucial when the privacy of their users is exposed to malicious quantum nodes or servers as in the case of multiclient distributed blind quantum computing,

We calculate the four-graviton scattering amplitude in Type II superstring theory at one loop up to seventh order in the low-energy expansion through the recently developed iterated integral formalism of Modular Graph Functions (MGFs). The machinery of the novel method allows us to propose a general form of the amplitude, which suggests that the expansion is expressible in terms of single-valued multiple

Metal halide perovskites have attracted extraordinary attention due to their excellent photoelectric properties and diverse crystal structures. The introduction of transition elements through doping serves as a potent strategy to modulate their physical and chemical properties. This approach has proven effective in imparting ferromagnetic semiconductor characteristics, which are essential for applications

Identifying conservation laws is central to every subfield of physics, as they illuminate the underlying symmetries and fundamental principles. A prime example can be found in quantum optics: the conservation of orbital angular momentum (OAM) during spontaneous parametric down-conversion (SPDC) enables the generation of a photon pair with entangled OAM. In this Letter, we report on the observation