Second desk-rejection for my I-Field Theory manuscript from Foundations of Physics (same editor), again without technical feedback or peer review.
Rejections without reasons prevent productive dialogue and make it impossible to address concerns I don't know about.
The paper remains on Zenodo for anyone who wants to engage with the physics: https://zenodo.org/records/20390108
#Physics #TheoreticalPhysics #SpringerNature #OpenScience #AcademicPublishing #Entropy #FoundationsOfPhysics
We present the I-field: a classical scalar field minimally coupled to matter whose equation of motion contains an explicit time-asymmetric dissipation term, derived from the Euler-Lagrange-Rayleigh (ELR) formalism [@rayleigh1877]. The field does not modify the gravitational sector: Einstein's field equations are unchanged, and the total stress-energy tensor of matter plus I-field is covariantly conserved. In the limit $\gamma \to 0$ the theory reduces exactly to standard classical field theory. The dissipation term $\gamma u^\mu \partial_\mu \mathcal{I}$, where $u^\mu$ is the four-velocity of the cosmological rest frame and $\gamma > 0$ is a coupling constant, is odd under time reversal while every term derived from a Lagrangian is even. This explicit breaking of time-reversal symmetry at the level of the field equation --- rather than through boundary conditions or statistical postulates --- has three consequences derived as theorems within the framework: 1. The I-field carries a covariant entropy production density $\sigma_{\mathcal{I}} = \gamma\dot{\mathcal{I}}^2 \geq 0$ pointwise, establishing the second law of thermodynamics as a field-theoretic identity rather than a postulate. 2. The energy transferred from matter to the I-field is strictly non-negative, providing a microscopic account of dissipation without invoking a heat bath or environment. 3. The preferred time direction is globally well-defined, identified with the cosmological rest frame in which the cosmic microwave background is isotropic [@fixsen2009]. The theory is self-contained and makes no modifications to the gravitational sector. The framework provides a minimal, classical extension of standard field theory in which irreversibility is fundamental rather than
Lasing and coherent perfect absorption (CPA) are time-reversed manifestations of non-Hermitian light-matter interactions. While exceptional points (EPs) have been extensively explored for controlling lasing dynamics, their role in the concurrent manipulation of lasing and absorption remains largely unexplored. Here, we demonstrate the emergence of a pair of conjugate second-order EPs (EP2s) in a gain-loss-engineered Fabry-Pérot microcavity that enables dual-state operation involving both coherent amplification and absorption. By spatially tailoring gain and loss, we realize two such EP2s: one associated with the coalescence of coupled scattering-matrix poles and the other, its conjugate, arising from the coalescence of corresponding zeros, thereby directly linking the amplifying and absorbing branches of the system. Leveraging the branch-point topology of these conjugate EP2s, we adiabatically encircle them in the gain-loss parameter space and achieve deterministic state permutation, enabling multiple reconfigurable switching schemes for the controlled generation and manipulation of threshold lasing and CPA. Notably, simultaneous encirclement of these conjugate EP2s yields a coordinated dual-state switching protocol, resulting in a frequency-matched coexistence of lasing and absorption responses within the same cavity. Our results establish an EP-based framework for unified and flexible control of lasing and absorption in non-Hermitian photonic systems.
Electronic friction-Langevin dynamics (EF-LD) provides an efficient framework for capturing nonadiabatic effects at solid surfaces, with particular relevance to electrochemistry and molecular electronics. In this work, we investigate electronic friction in the two-dimensional Hubbard-Holstein model employing dynamical mean-field theory (DMFT), where the full density-matrix numerical renormalization group (FDM-NRG) serves as the impurity solver. Our results are benchmarked against mean-field theory (MFT). DMFT yields two distinct peaks in the electronic friction, arising from electron attachment/detachment resonances with the solid Fermi level, whereas MFT is unable to capture this Fermi resonance. We further examine the dynamics of electronic friction via EF-LD simulations. Our simulations uncover significant discrepancies mainly in the electronic population evolution predicted by MFT versus DMFT, indicating that MFT is inadequate for describing nonadiabatic dynamics in strongly correlated systems. Thanks to its flexibility and computational efficiency, the proposed DMFT-based approach can be readily extended to a broad range of applications.
Wearable sensing technology capable of point-of-care, continuous and non-invasive analysis of exosomes in biofluid such as tears and sweat is an essential part for future personalized medicine. Major detection and identification methods of cell secreted Extracellular Vesicles (EVs) often require labeling and are time-consuming, resulting in low efficiency in EV mechanism research and disease diagnosis. While the label-free Surface-enhanced Raman spectroscopy (SERS) has been combined with deep learning model for EV identification in blood, their application to non-invasive detection of EVs in tears and sweat are missing. Here, we filled this gap by developing an artificial intelligence (AI)-assisted Surface-enhanced Raman spectroscopy (SERS) method based on salt-induced nanoparticle aggregation for fast EV identification in tears and sweat with high accuracy. Significantly, our label-free detection and AI differentiation of EVs from 6 cell lines (HepG2, Hela, 143B, LO-2, BMSC, H8) achieved the identification of EVs in tear fluids from 7 different disease sources with accuracies >92%. Our results showed that this platform can not only distinguish EVs from multiple cell sources but also generate highly reproducible and selective EV signals in tear fluids without a need for chemical labeling or separation steps. Molecular dynamics simulations revealed that silver atoms (Ag) form electrostatic interactions with oxygen atoms of multiple amino acid residues in proteins, suggesting a high affinity. This strategy realizes ultra-sensitive and anti-interference detection of EVs, providing a new idea for the rapid diagnosis of clinical diseases.
“Given, as we will see, Albert’s shabby treatment of her later in life, then all the more sympathy was directed toward Mileva and her plight by history. Indeed, some went so far (you will still find websites saying this) that Albert stole the theory of relativity from Mileva.”
https://academyoftheheartandmind.com/2025/02/07/the-dark-side-of-albert-einstein-and-mileva-maric-his-first-wife/
New three‑dimensional magnetic structure discovered with laser light
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