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Showing 7991 results for "bei zeng" in Physics
Physics Preprint PDF DOI

Discontinuous BBP transitions

Dario Bocchi, Giulio Biroli, Chiara Cammarota, Federico Ricci-Tersenghi ยท 2026

The Baik-Ben Arous-Peche (BBP) transition sets fundamental limits for detecting low-rank structure in noisy high-dimensional data and underlies a wide range of spectral methods in many fields from phyโ€ฆ

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Physics Preprint PDF DOI

No-Go Theorem for Quasiparticle BEC in the Spin-Boson Model

Yoshitsugu Sekine ยท 2026

We analyze the possibility of Bose-Einstein condensation (BEC) at finite temperature in the spin-boson model within the frameworks of functional integral representations and the resolvent algebra. Becโ€ฆ

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Ultrafast Sliding Ferroelectric Switching in Bilayer Hexagonal Boron Nitride Revealed by Deep Learning Molecular Dynamics

Yinan Wang, Poyen Chen, Teruyasu Mizoguchi ยท 2026

Sliding ferroelectricity in bilayer hexagonal boron nitride (h-BN) offers compelling prospects for next-generation non-volatile memory, yet the atomistic dynamics of electric-field-driven polarizationโ€ฆ

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Physics Preprint PDF DOI

Uncovering Exotic Paired States in the 2D Spin-Imbalanced Fermi Gas with Neural Wave Functions

Wan Tong Lou, Gino Cassella, Andres Perez Fadon, Halvard Sutterud, David Pfau, James S. Spencer, Johannes Knolle, W.M.C. Foulkes ยท 2026

We study the zero-temperature phase diagram of the 2D spin-imbalanced Fermi gas with short-ranged attractive interactions using the recently developed neural network variational Monte Carlo method witโ€ฆ

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Microstructure engineering of Ti-6Al-4V in laser powder bed fusion via 1D thermal modeling and supporting experiments

Carina van der Linde, Iason Sideris, Lea Deillon, Mohamadreza Afrasiabi, Markus Bambach ยท 2026

The microstructure of Ti-6Al-4V has a decisive impact on its mechanical performance; however, controlling phase composition during Laser Powder Bed Fusion (LPBF) remains difficult because of the inherโ€ฆ

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Fragmentation Temperature of 1D and 3D Quantum Droplets in a BEC Mixture

Jeroen Van Loock, Denise Ahmed-Braun, Jacques Tempere ยท 2026

In a mixture of two Bose-Einstein condensates, the interactions can be tuned such that self-bound objects called quantum droplets appear. Whereas the ground states of such quantum droplets at finite tโ€ฆ

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Enhancing Phase Retrievability of Quantum Channels via Interferometric Coupling

Kai Liu, Deguang Han, Omar Nour ยท 2026

Phase retrievability of a quantum channel asks whether pure states can be reconstructed from suitable measurements. In this paper, we study this problem from three complementary viewpoints: quantum inโ€ฆ

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Geometry selective colossal negative dielectric permittivity in CaFe2O4 nanostructures

Sourav Sarkar, Kalyan Mandal ยท 2026

Negative permittivity metamaterial is a scientifically rich avenue due to its tremendous application in several arena of materials research including novel superlens, band-gap materials, invisibility โ€ฆ

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Contextuality from the Projector Overlap Matrix

Ali Can Gunhan, Semahi Serhat Aksoy, Zafer Gedik ยท 2026

We place several known indicators of Kochen--Specker contextuality -- the KCBS correlator $\chi$, the contextual fraction $\CF$, the Shannon-entropic $n$-cycle inequality of Chaves and Fritz, and the โ€ฆ

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Constrained Quantum Optimization meets Model Reduction

Max Tschaikowski, Andrea Vandin ยท 2026

Quantum optimization algorithms promise advantages for difficult problems but are costly to simulate and analyze on classical machines. Recently, constrained quantum optimization has been investigatedโ€ฆ

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Amorphous Nanoconfinement Enables Self-sustaining Sabatier Reaction at Ambient Conditions

Zhiyong Qiu, Cheng Li, Jinzhen Yang, Fangkun Sun, Zheng Zhang, Canwen Yu, Weizheng Cai, Liang Guo, Yutong Gong, Junjie Wang, Meng Danny Gu, Jiazhen Wu ยท 2026

The Sabatier reaction, the catalytic hydrogenation of CO2 into CH4, offers a cornerstone for carbon capture and utilization, and in-situ resource utilization during space exploration; however, it faceโ€ฆ

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Third Quantization for Order Parameter (I): BCS-BEC crossover with macroscopically coherent state

Guo-Jian Qiao, Miao-Miao Yi, Xin Yue, C. P. Sun ยท 2026

We revisit the quantization of the order parameter, which we refer to as third quantization, from the perspective of the commutation relation between the phase operator of the order parameter and the โ€ฆ

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BCS-BEC crossover of polaritonic condensates in mass-imbalanced semimetal/semiconductor microcavities

Thi-Hau Nguyen, Minh-Tien Tran, Van-Nham Phan ยท 2026

The impacts of the mass imbalance and Coulomb interaction on the complex phase structures of the polaritonic condensates and their Bardeen-Cooper-Schrieffer (BCS)--Bose-Einstein condensation (BEC) croโ€ฆ

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Node-reduction through Joint Optimization of Input and Readout Layers in Photonic Reservoir Equalization

Ruben Van Assche, Sarah Masaad, Peter Bienstman ยท 2026

Photonic reservoir computing is a machine learning paradigm in which a recurrent neural network remains fixed while only the output weights are trained. This makes it a well-suited approach for high-sโ€ฆ

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Wave--particle transition and quantum Zeno effect in which-way experiments with a superconducting quantum processor

Shiyu Wang, Zhiguang Yan, Clemens Gneiting, Rui Li, Franco Nori, Yasunobu Nakamura ยท 2026

Wave--particle duality demonstrates the peculiar nature of quantum mechanics. In which-way experiments, depending on the measurement scheme, a particle exhibits either wave-like or particle-like propeโ€ฆ

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Discovery of Graphene Sheets and C-Rich Micro-Oval structure in Stingless Bee Hive; Leading to an Emergent Material with Debut of Blue Emission

Manas Kumar Dalai, Ankita Mahakhuda, Abinash Prusty ยท 2026

Naturally produced stingless bee hive (NP-SBH) is an intricately produced material by the combination of waxes, resin and other biological materials that offers protection and structural stability to โ€ฆ

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Thermal Phase Structure of the Attractive Fermi Hubbard Model with Imaginary Chemical Potential

Evangelos G. Filothodoros ยท 2026

We study the BCS--BEC crossover of the large $N$ attractive Fermi-Hubbard model on a one-dimensional lattice using the mean field approximation in the presence of an imaginary chemical potential. We sโ€ฆ

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Hamiltonian dynamics from pure dissipation

Zhong-Xia Shang, Daniel Stilck Franca ยท 2026

The fundamental difference between closed and open quantum dynamics lies in their environmental interaction: closed systems are perfectly isolated and evolve reversibly under unitary Hamiltonian dynamโ€ฆ

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Diffusion compaction coupling controls pore pressure dynamics in granular fluid flows

Eric C.P. Breard, Claudia Elijas Parra, Mattia de' Michieli Vitturi ยท 2026

Excess pore pressure in granular--fluid mixtures can transiently suppress frictional contacts and dramatically enhance flow mobility, yet its evolution is commonly modeled using constant effective difโ€ฆ

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Phonon number relaxation in a 3D superfluid with a concave acoustic branch

Yvan Castin (LKB (Lhomond)), Mariia Tsimokha (LKB (Lhomond)) ยท 2026

We consider the collisional evolution towards equilibrium of a spatially homogeneous and isotropic phonon gas of a three-dimensional superfluid with a concave acoustic excitation branch, at a non-zeroโ€ฆ

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