The Schrödinger–Newton (SN) model is a semi-classical theory in which, in addition to mutual attraction, massive quantum particles interact with their own gravitational fields. While there are many studies on the phenomenology of single particles, correlation dynamics in multipartite systems is largely unexplored. Here, we show that the SN interactions preserve the product form of the initial state

Without specifying a matter field nor imposing energy conditions, we study Killing horizons in -dimensional static solutions in general relativity with an -dimensional Einstein base manifold. Assuming linear relations and near a Killing horizon between the energy density ρ, radial pressure , and tangential pressure p2 of the matter field, we prove that any non-vacuum solution satisfying ( ) or does

The laser interferometer space antenna (LISA) will observe gravitational-wave (GW) signals from a wide range of sources, including massive black hole binaries (MBHBs). Although numerous techniques have been developed to perform Bayesian inference for LISA, they are often computationally expensive; analyses often take at least ∼1 month on a single CPU, even when using accelerated techniques. Not only

A major aim of gravitational wave astronomy is to test observationally the Kerr nature of black holes. The strongest such test, with minimal additional assumptions, is provided by observations of multiple ringdown modes, also known as black hole spectroscopy. For the gravitational wave merger event GW190521, we have previously claimed the detection of two ringdown modes emitted by the remnant black

We present a detailed exposition of a statistical method for estimating cosmological parameters from the observation of a large number of strongly lensed binary-black-hole (BBH) mergers observable by next (third) generation (XG) gravitational-wave (GW) detectors. This method, first presented in Jana (2023 Phys. Rev. Lett.130 261401), compares the observed number of strongly lensed GW events and their

In this paper, we realise the charged Nariai black hole on a braneworld from a nucleated bubble in AdS5, known as the dark bubble model. Geometrically, the black hole takes the form of a cylindrical spacetime pulling on the dark bubble. This is realised by a brane embedding in an AdS5 black string background. Identifying the brane with a D3-brane in string theory allows us to determine a relation between

The main image shows the full extent of this 1% cutout, a combination of photometry from the VISible instrument (VIS, with wavelength range 550–900 nm) and the Near-Infrared Spectrometer and Photometer (NISP, here using the Y and H bands). Spanning 132 square degrees of sky, this cutout is located south of the celestial equator, close to the Large Magellanic Cloud in projection. Perhaps the most impressive

In October 2024, two spacecrafts were successfully launched towards different bodies: Europa, a prime astrobiological target, and Dimorphos, the first test of planetary defence. Joined in their exploration by other missions, they are perfect examples of intra-agency synergy to enhance our knowledge of the Solar System.

Arm-locking technique has been a focus of attention as one of the means to suppress the laser phase noise in space-based gravitational wave detector. The main idea of the arm-locking technique is to transfer the stability of the detector arm length to laser frequency by introducing a feedback control loop. Generally, laser phase noise will be suppressed by an amount similar to the magnitude of the

All current gravitational wave (GW) observatories operate with Nd:YAG lasers with a wavelength of 1064 nm. The sensitivity of future GW observatories could benefit significantly from changing the laser wavelength to approximately 2 µm combined with exchanging the current room temperature test mass mirrors with cryogenically cooled crystalline silicon test masses with mirror coatings from amorphous

We develop multiple analytical solutions to the Rastall field equations using a recently proposed scheme, named the gravitational decoupling. In order to do this, we assume a spherical distribution that possesses anisotropic pressure in its interior and extend it by incorporating an additional gravitating source through the corresponding Lagrangian density. Such addition in the initial fluid distribution

We consider the problem of having relativistic quantum mechanics re-formulated with hydrodynamic variables, and specifically the problem of deriving the Mathisson–Papapetrou–Dixon equations (describing the motion of a massive spinning body moving in a gravitational field) from the Dirac equation. The problem will be answered on a general manifold with torsion and gravity. We will demonstrate that when

The 94 erupting novae detected in the HST survey were combined with 41 archival HST detections to provide a distribution across M87. An image of the galaxy was divided into ten equal wedges and the number of novae in each was counted (see image, with the cyan and pink histograms indicating the tally in each wedge in the most recent and combined surveys, respectively). Twenty-five novae were found to

Based on an analytically continued Riemannian foliated quantum gravity super-Hamiltonian, known as branch cut quantum gravity (BCQG) we propose a novel approach to investigating the effects of noncommutative geometry on a minisuperspace of variables, influencing the acceleration behavior of the Universe’s wave function and the cosmic scale factor. Noncommutativity is introduced through a deformation

In spatially non-compact homogeneous minisuperpace models, spatial integrals in the Hamiltonian and symplectic form must be regularised by confining them to a finite volume Vo, known as the fiducial cell. As this restriction is unnecessary in the complete field theory before homogeneous reduction, the physical significance of the fiducial cell has been largely debated, especially in the context of

As a field geologist, I have been involved in the overwhelming excitement of three scientific revolutions—a mini revolution in structural geology, the impact-extinction revolution that freed geology from uncompromising uniformitarianism, and the plate tectonic revolution that turned the routine field of geology into one of the most exciting and essential sciences of the present time. I have also worked

Axion and axion-like particles are considered candidates of dark matter but their detection remains elusive. They can possibly be generated in the solar interior by Primakoff scattering — interactions of photons with strong electromagnetic field. In a recent work, the CERN Axion Solar Telescope (CAST) collaboration reports new limits on the coupling constant between axions and photons obtained with

The recent suggestion that a z = 8.3 strongly lensed galaxy system — known as the Firefly Sparkle and observed with JWST earlier this year — is likely the progenitor of a Milky-Way-like galaxy has highlighted the need for detailed, self-consistent modelling of our Galaxy that can connect its present-day properties to those expected at much earlier stages of its life. Elka Rusta and colleagues use semi-analytic

The elemental composition of planets is commonly related to their star’s abundances, as they both come from the same reservoir during formation. However, it is estimated that 10–15% of rocky exoplanets have unusually high densities. Zifan Lin and co-authors investigate the hypothesis that these planets are fossil cores of giant planets after they have been stripped bare of their envelope and remained

We present a discontinuous Galerkin-finite difference hybrid scheme that allows high-order shock capturing with the discontinuous Galerkin method for general relativistic magnetohydrodynamics in dynamical spacetimes. We present several optimizations and stability improvements to our algorithm that allow the hybrid method to successfully simulate single, rotating, and binary neutron stars. The hybrid

We investigate hidden charm pentaquark states using an off-shell coupled-channel formalism involving heavy meson and singly heavy baryon scattering. Our approach utilizes an effective Lagrangian to construct the kernel amplitudes, which respect both heavy quark symmetry and hidden local symmetry. After solving the coupled integral equations, we obtain the transition amplitudes for 𝐽/𝜓⁢𝑁 scattering

We revisit the computation of the beta function in the two-dimensional ℂℙ⁡(1) sigma model. We show that in different schemes, different diagrams are responsible for the running, such as momentum-independent tadpoles or even UV-finite bubble diagrams. We also comment on the relation between the beta functions and the energy dependence of scattering amplitudes.

We propose an extension of the color-kinematics duality for nonlinear sigma models with nonymmetric cosets. The role of color is replaced with curvatures in field space. The duality between curvature and kinematics allows for a new double copy: the double copy of the nonlinear sigma model for nonsymmetric cosets is the general Galileon theory. We provide evidence for this new double copy of geometry

The gravitational form factors (GFFs) of pions are calculated from a top-down holographic quantum chromodynamics (QCD) approach with momentum transfer dependence for the first time. It is important because the GFFs of hadrons have information on the internal stress distribution that may provide insight into the mechanism of how QCD forms hadrons. The forward limit value of this GFFs, i.e., the D-term

Using the nonrelativistic approximation in the curved-space Dirac equation, the analog of the Pauli equation is derived for a weak gravitational field with a gauge fixing condition related to the synchronous gauge, in the presence of an electromagnetic field. Different from the previous works, which were employing either the exact or conventional Foldy-Wouthuysen transformations, here we perform calculations

The second-order coherence of light is a widely recognized physical quantity used to assess the quantum characteristics of light, and its properties have been extensively investigated in the field of quantum optics. Recently, it has been proposed that second-order coherence can be utilized as an indicator of quantum entanglement. In this study, we evaluated the second-order coherence in the context

We investigate the properties of postmerger remnants of binary neutron star mergers in the framework of Damour–Esposito-Farese-type scalar-tensor theory of gravity with a massive scalar field by numerical relativity simulation. It is found that the threshold mass for prompt collapse is raised in the presence of the excited scalar field. Our simulation results also suggest the existence of a long-lived

We generalize the existing works on the way (generalized) Lemaître-Tolman-Bondi (LTB) models can be embedded into polymerized spherically symmetric models in several aspects. We reexamine such an embedding at the classical level and show that a suitable LTB condition can only be treated as a gauge fixing in the nonmarginally bound case, while in the marginally bound case, it must be considered as an

Based on modifications inspired from loop quantum gravity (LQG), spherically symmetric models have recently been explored to understand the resolution of classical singularities and the fate of the spacetime beyond. While such phenomenological studies have provided useful insights, questions remain on whether such models exhibit some of the desired properties such as consistent LTB conditions, covariance

We discuss the coupling of photon spin with rotation in connection with a recent proposal of Fedderke et al. [M. A. Fedderke, R. Harnik, D. E. Kaplan, S. Posen, S. Rajendran, F. Serra, and V. P. Yakovlev, A precision gyroscope from the spin of light, arXiv:2406.16178.] regarding a precision gyroscope based on the intrinsic spin of light. To this end, we analyze the propagation of electromagnetic radiation

The cosmic microwave background (CMB) lensing power spectrum is a powerful probe of the late-time Universe, encoding valuable information about cosmological parameters such as the sum of neutrino masses and dark energy equation of state. However, the presence of anisotropic cosmic birefringence can bias the reconstructed CMB lensing power spectrum using CMB polarization maps, particularly at small

We construct a hybrid-inflation model where the inflaton potential is generated radiatively, as gauge symmetries guarantee it to be accidentally flat at tree level. The model can be regarded as a small-field version of natural inflation, with inflation ending when the mass of a second scalar, the waterfall field, turns tachyonic. This provides a minimal, robust realization of hybrid inflation, which

Dark matter (DM) constitutes the predominant portion of matter in our Universe. Despite compelling evidence, the precise characteristics of DM remain elusive. Among the leading DM candidates are weakly interacting massive particles, which may clump into steep concentrations around the central black holes of galaxies. However, DM profiles of the resulting dense spikes remain uncertain. Here we employ

We present a stacked lensing analysis of 96 galaxy clusters selected by the thermal Sunyaev-Zel’dovich (SZ) effect in maps of the cosmic microwave background (CMB). We select foreground galaxy clusters with a 5⁢𝜎-level SZ threshold in CMB observations from the Atacama Cosmology Telescope, while we define background source galaxies for the lensing analysis with secure photometric redshift cuts in Year

We employ first-principles quantum field theoretical methods to investigate the longitudinal and transverse electrical conductivities of a strongly magnetized hot quantum electrodynamics (QED) plasma at the leading order in coupling. The analysis employs the fermion damping rate in the Landau-level representation, calculated with full kinematics and exact amplitudes of one-to-two and two-to-one QED

We describe a novel class of quantum mechanical particle oscillations in both relativistic and nonrelativistic systems based on 𝒫⁢𝒯 symmetry and 𝒯2=−1 (relevant for fermions), where 𝒫 is parity and 𝒯 is time reversal. The Hamiltonians are chosen at the outset to be self-adjoint with respect to a 𝒫⁢𝒯 inner product. The quantum mechanical time evolution is based on a modified 𝒞⁢𝒫⁢𝒯 inner product

We present a calculation of the vector-isovector timelike form factors of the pion and the kaon using lattice quantum chromodynamics. We calculate two-point correlation functions with 𝑚𝜋∼280  MeV, extracting both the finite-volume spectrum and matrix elements for these states created from the vacuum by a vector current. After determining the coupled-channel 𝜋⁢𝜋,𝐾⁢¯𝐾 scattering amplitudes, we

We consider three-dimensional (3D) lattice SU⁡(𝑁𝑐) gauge Higgs theories with multicomponent (𝑁𝑓>1) degenerate scalar fields and 𝑈⁡(𝑁𝑓) global symmetry, focusing on systems with 𝑁𝑐=2, to identify critical behaviors that can be effectively described by the corresponding 3D SU⁡(𝑁𝑐) gauge Higgs field theory. The field-theoretical analysis of the RG flow allows one to identify a stable charged

In this work, we investigate the resonance production in Λ+𝑐→𝛾⁢𝜋+⁢Λ decay through the triangle singularity (TS) mechanism, within an effective Lagrangian approach. We find that the appropriate loop decay process could develop a triangle singularity in the invariant mass 𝑀𝜋⁢Λ around 1.35 GeV, with the shape depending on the quantum numbers of Σ* states that couple to the final 𝜋⁢Λ system. Especially

We investigate the thermodynamics and phase structure of 𝑆⁢𝑈⁡(3) Yang-Mills theory on 𝕋2×ℝ2 in Euclidean spacetime in an effective-model approach. The model incorporates two Polyakov loops along two compactified directions as dynamical variables, and is constructed to reproduce thermodynamics on 𝕋2×ℝ2 measured on the lattice. The model analysis indicates the existence of a novel first-order phase

We refine our previous calculation of multipole amplitude 𝐸0+ for pion photoproduction process, 𝛾⁢𝑁→𝜋⁢𝑁. The treatment of final-state interactions is based upon an earlier analysis of pion-nucleon scattering within Hamiltonian effective field theory, supplemented by incorporating contributions from the 𝑁*⁡(1650) and the 𝐾⁢Λ coupled channel. The contribution from the bare state corresponding

The conventional wisdom in dealing with electromagnetic transition between heavy quarkonia is the multipole expansion, when the emitted photon has a typical energy of order quarkonium binding energy. Nevertheless, in the case when the energy carried by the photon is of order typical heavy quark momentum, the multipole expansion doctrine is expected to break down. In this work, we apply the “hard-scattering”

We rigorously prove that, in any relativistic kinetic theory whose nonhydrodynamic sector has a finite gap, the Taylor series of all hydrodynamic dispersion relations has a finite radius of convergence. Furthermore, we prove that, for shear waves, such radius of convergence cannot be smaller than 1/2 times the gap size. Finally, we prove that the nonhydrodynamic sector is gapped whenever the total

Using a data sample of 𝑒+⁢𝑒− collisions corresponding to an integrated luminosity of 7.93  fb−1 collected with the BESIII detector at the center-of-mass energy 3.773 GeV, we perform the first amplitude analysis of the decay 𝐷+→𝐾0𝑆⁢𝐾0𝑆⁢𝜋+. The absolute branching fraction of 𝐷+→𝐾0𝑆⁢𝐾0𝑆⁢𝜋+ is measured to be (2.97±0.0⁢9stat±0.0⁢5syst)×10−3. The dominant intermediate process is 𝐷+→𝐾0𝑆⁢𝐾*⁢(892)+

In this work, the Coulomb effects (Coulomb correlations) in 𝜋+⁢𝜋− pairs produced in p+Ni collisions at 24  GeV/𝑐, are studied using experimental 𝜋+⁢𝜋− pair distributions in 𝑄, the relative momentum in the pair center-of-mass system (c.m.s.), and its projections 𝑄𝐿 (longitudinal component) and 𝑄𝑡 (transverse component) relative to the pair direction in the laboratory system (LS). The major

We report an improved measurement of the valence 𝑢 and 𝑑 quark distributions from the forward-backward asymmetry in the Drell-Yan process using 8.6  fb−1 of data collected with the D0 detector in 𝑝⁢¯𝑝 collisions at √𝑠=1.96. This analysis provides the values of new structure parameters that are directly related to the valence up and down quark distributions in the proton. In other experimental