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Nonlinear-linear duality for multipath quantum interference
Yi Zheng, Jin-Shi Xu, Chuan-Feng Li, Guang-Can Guo
https://arxiv.org/abs/2508.13855 https://arx…

Nonlinear-linear duality for multipath quantum interference
In quantum optics, the postselection amplitude of a nondegenerate parametric down-conversion (PDC) process is linked to a beamsplitter (BS) via partial time reversal, up to a normalization coefficient which is related to the parametric gain [Proc. Natl. Acad. Sci. USA 117, 33107 (2020)]. A special example where the gain is low is reminiscent of Klyshko's advanced-wave picture in quantum imaging. Here, we propose and prove a generalized duality for multiple spatial paths connecting a quantum non…

Open Questions about Time and Self-reference in Living Systems
Samson Abramsky, Wolfgang Banzhaf, Leo S. D. Caves, Michael Levin, Penousal Machado, Charles Ofria, Susan Stepney, Roger White
https://arxiv.org/abs/2508.11423

Open Questions about Time and Self-reference in Living Systems
Living systems exhibit a range of fundamental characteristics: they are active, self-referential, self-modifying systems. This paper explores how these characteristics create challenges for conventional scientific approaches and why they require new theoretical and formal frameworks. We introduce a distinction between 'natural time', the continuing present of physical processes, and 'representational time', with its framework of past, present and future that emerges with life itself. Representa…

Layer-Dependent Spin Properties of Charge Carriers in Vertically Coupled Telecom Quantum Dots
Marius Cizauskas, A. Kors, J. P. Reithmaier, A. M. Fox, M. Benyoucef, Manfred Bayer, Alex Greilich
https://arxiv.org/abs/2509.15051

Layer-Dependent Spin Properties of Charge Carriers in Vertically Coupled Telecom Quantum Dots
We investigate the spin properties of charge carriers in vertically coupled InAs/InAlGaAs quantum dots grown by molecular beam epitaxy, emitting at telecom C-band wavelengths, with a silicon $δ$-doped layer. Using time-resolved pump-probe Faraday ellipticity measurements, we systematically study single-, two-, and four-layer quantum dot (QD) configurations to quantify how vertical coupling affects key spin-coherence parameters. Our measurements reveal distinct layer-dependent effects: (1) Addi…

Generalstab der Ukraine: Situation bei Pokrowsk stabilisiert
Die ukrainische Armee hat eigenen Angaben nach die schwierige Lage am Frontabschnitt bei Dobropillja und Pokrowsk in der ostukrainischen Region Donezk stabilisieren können. Das Erste Korps der Nationalgarde und benachbarte sowie unterstellte Einheiten hätten dem Feind erhebliche Verluste zugefügt, zitierte die Nachrichtenagentur Interfax-Ukraine den Sprecher des Gen…
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Ukraine-Liveblog: ++ Russland und Ukraine tauschen erneut Gefangene aus ++
Jeweils 84 Kriegsgefangene haben Moskau und Kiew heute ausgetauscht. Die Ukraine hat nach Angaben von Präsident Selenskyj von europäischen Verbündeten 1,5 Milliarden Dollar für den Kauf von US-Waffen erhalten.

Josephson diode effect in nanowire-based Andreev molecules
Shang Zhu, Yiwen Ma, Jiangbo He, Xiaozhou Yang, Zhongmou Jia, Min Wei, Yiping Jiao, Jiezhong He, Enna Zhuo, Xuewei Cao, Bingbing Tong, Ziwei Dou, Peiling Li, Jie Shen, Xiaohui Song, Zhaozheng Lyu, Guangtong Liu, Dong Pan, Jianhua Zhao, Bo Lu, Li Lu, Fanming Qu
https://arxiv.org/abs…

Josephson diode effect in nanowire-based Andreev molecules
Superconducting systems exhibit non-reciprocal current transport under certain conditions of symmetry breaking, a phenomenon known as the superconducting diode effect. This effect allows for perfect rectification of supercurrent, and has received considerable research interest. We report the observation of the Josephson diode effect (JDE) in nanowire-based Andreev molecules, where the time-reversal and spatial-inversion symmetries of a Josephson junction (JJ) can be nonlocally broken by coheren…

Search for High-Energy Neutrinos From the Sun Using Ten Years of IceCube Data
Abbasi, Ackermann, Adams, Agarwalla, Aguilar, Ahlers, Alameddine, Ali, Amin, Andeen, Arg\"uelles, Ashida, Athanasiadou, Axani, Babu, Bai, Baines-Holmes, V., Barwick, Bash, Basu, Bay, Beatty, Tjus, Behrens, Beise, Bellenghi, Benkel, BenZvi, Berley, Bernardini, Besson, Blaufuss, Bloom, Blot, Bodo, Bontempo, Motzkin, Meneguolo, B\"oser, Botner, B\"ottcher, Braun, Brinson, Brisson-Tsavoussis, Burle…

Search for High-Energy Neutrinos From the Sun Using Ten Years of IceCube Data
In this Letter, we present the results of a search for high-energy neutrinos produced by the annihilation of dark matter particles trapped in the Sun. Using 9.3 and 10.4 years of data from the DeepCore and IceCube neutrino detectors, we establish world-best limits for spin-dependent interactions between dark matter and Standard Model particles for dark matter masses from tens of GeV to tens of TeV. We additionally place constraints on the neutrino background produced by interactions of cosmic r…

Probing laser-driven surface and subsurface dynamics via grazing-incidence XFEL scattering and diffraction
Lisa Randolph, \"Ozg\"ul \"Ozt\"urk, Dmitriy Ksenzov, Lingen Huang, Thomas Kluge, S. V. Rahul, Victorien Bouffetier, Carsten Baehtz, Mohammadreza Banjafar, Erik Brambrink, Fabien Brieuc, Byoung Ick Cho, Sebastian G\"ode, Tobias Held, Hauke H\"oppner, Gerhard Jakob, Mathias Kl\"aui, Zuzana Kon\^opkov\'a, Changhoo Lee, Gyusang Lee, Mikako Makit…

Probing laser-driven surface and subsurface dynamics via grazing-incidence XFEL scattering and diffraction
We demonstrate a grazing-incidence x-ray platform that simultaneously records time-resolved grazing-incidence small-angle x-ray scattering (GISAXS) and grazing-incidence x-ray diffraction (GID) from a femtosecond laser-irradiated gold film above the melting threshold, with picosecond resolution at an x-ray free-electron laser (XFEL). By tuning the x-ray incidence angle, the probe depth is set to tens of nanometers, enabling depth-selective sensitivity to near-surface dynamics. GISAXS resolves u…

Crosslisted article(s) found for q-bio.OT. https://arxiv.org/list/q-bio.OT/new
[1/1]:
- Open Questions about Time and Self-reference in Living Systems
Abramsky, Banzhaf, Caves, Levin, Machado, Ofria, Stepney, White

eKalibr-Inertial: Continuous-Time Spatiotemporal Calibration for Event-Based Visual-Inertial Systems
Shuolong Chen, Xingxing Li, Liu Yuan
https://arxiv.org/abs/2509.05923 https:…

eKalibr-Inertial: Continuous-Time Spatiotemporal Calibration for Event-Based Visual-Inertial Systems
The bioinspired event camera, distinguished by its exceptional temporal resolution, high dynamic range, and low power consumption, has been extensively studied in recent years for motion estimation, robotic perception, and object detection. In ego-motion estimation, the visual-inertial setup is commonly adopted due to complementary characteristics between sensors (e.g., scale perception and low drift). For optimal event-based visual-inertial fusion, accurate spatiotemporal (extrinsic and tempor…

Größter russischer Geländegewinn in Ukraine binnen 24 Stunden seit einem Jahr
Die russischen Streitkräfte haben in der Ukraine den größten Geländegewinn binnen 24 Stunden seit mehr als einem Jahr erzielt. Wie die Auswertung von Daten des US-Instituts für Kriegsstudien (Institute for the Study of War) durch die Nachrichtenagentur AFP ergab, übernahm oder beanspruchte die russische Armee im Laufe des Dienstags die Kontrolle übe…
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Ukraine-Liveblog: ++ Merz: "Es gibt Hoffnung auf Bewegung" ++
Bundeskanzler Merz hat sich nach dem Gespräch mit US-Präsident Trump verhalten optimistisch geäußert und Trump viel Erfolg für dessen Unterredung mit Kremlchef Putin gewünscht. Die südukrainische Region Cherson meldet drei Tote.