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Thermal Entropy, Density Disorder, and Antiferromagnetism of Repulsive Fermions in 3D Optical Lattice
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作者 Yu-Feng Song Youjin Deng Yuan-Yao He 《Chinese Physics Letters》 2025年第11期321-329,共9页
The celebrated antiferromagnetic(AFM) phase transition was realized in a most recent optical lattice experiment for the 3D fermionic Hubbard model [Shao et al. Nature 632 267(2024)]. Despite this important progress, i... The celebrated antiferromagnetic(AFM) phase transition was realized in a most recent optical lattice experiment for the 3D fermionic Hubbard model [Shao et al. Nature 632 267(2024)]. Despite this important progress, it was observed that the AFM structure factor(and also the critical entropy) reaches its maximum at an interaction strength U/t■11.75, which is significantly larger than the theoretical prediction of U/t■8. Here,we resolve this discrepancy by studying the interplay between the thermal entropy, density disorder, and antiferromagnetism in the half-filled 3D Hubbard model, using numerically exact auxiliary-field quantum Monte Carlo simulations. We have achieved an accurate entropy phase diagram, enabling us to simulate arbitrary entropy path on the temperature-interaction plane and track experimental parameters effectively. We find that above the discrepancy can be quantitatively explained by the entropy increase associated with increasing interaction strength in experiments, and together with the lattice density disorder present in the experimental setup. We further investigate the entropy dependence of double occupancy and predict universal behaviors that could serve as valuable probes in future optical lattice experiments. 展开更多
关键词 optical lattice experiment Hubbard model thermal entropy density disorder d optical lattice d fermionic hubbard model repulsive fermions ANTIFERROMAGNETISM
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Emission Theory with Re-Emission of Photons by the Medium—Instead of Special Relativity
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作者 Gtnnadiy Sokolov Vitali Sokolov 《Optics and Photonics Journal》 2024年第4期47-73,共27页
Instead of relying on the erroneous principles of Special Relativity, this paper proposes a new theory based on the emission of photons by a source and their re-emission by a transparent medium. Through over 60 articl... Instead of relying on the erroneous principles of Special Relativity, this paper proposes a new theory based on the emission of photons by a source and their re-emission by a transparent medium. Through over 60 articles, we have demonstrated that Special Relativity is based on optical experiments and observations that have been incorrectly explained by the theory of a non-existent ether. Our findings show that all known experiments can be explained using classical concepts of space and time, thereby refuting the theory of relativity. This article also addresses the fallacy of the widely accepted etheric Doppler effects and its significant role in the history of science. 展开更多
关键词 The Fallacy of the Theory of Relativity The New Theory of Light The Fallacy of the Doppler Effect and Its Role in the Development of Science Analysis of the Main optical experiments
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