Deterministic multi-phonon entanglement between two mechanical resonators on separate substrates by Ming-Han Chou, Hong Qiao, Haoxiong Yan, Gustav Andersson, Christopher R. Conner, Joel Grebel, Yash J. Joshi, Jacob M. Miller, Rhys G. Povey, Xuntao Wu, Andrew N. Cleland

“…Abstract Mechanical systems have emerged as a compelling platform for applications in quantum information, leveraging advances in the control of phonons, the quanta of mechanical vibrations. Experiments have demonstrated the control and measurement of phonon states in mechanical resonators, and while dual-resonator entanglement has been demonstrated, more complex entangled states remain a challenge. …”
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Superradiant phononic emission from the analog spin ergoregion in a two-component Bose–Einstein condensate by Berti, Anna, Giacomelli, Luca, Carusotto, Iacopo

“…In this case, the superradiant scattering process involves phonon emission into the much wider ergoregion of spin modes, so the physics most closely resembles the one of rotating massive objects. …”
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Amortissement des phonons dans un superfluide 2D : insuffisance de la règle d’or de Fermi à basse température by Castin, Yvan, Serafin, Alan, Sinatra, Alice

Subjects: “…amortissement Belyaev–Landau des phonons…”
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Hierarchical band gaps in complex periodic systems by Dunckley, Lucas, Davies, Bryn

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Predicted thermodynamic structural and elastic properties of SrCuP and SrCuSb for thermoelectric applications by N. Bioud, N. Benchiheub, A. Benamrani, M. A. Ghebouli, M. Fatmi, Faisal Katib Alanazi, R. Yekhlef

“…The vibration energy of phonons is 24.14 kJ/mol and 23.37 kJ/mol for SrCuP and SrCuSb. …”
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The Dynamical Casimir Effect in quasi-one-dimensional Bose condensates: the breathing ring by Tettamanti, Manuele, Parola, Alberto

“…The analytical solution of the time dependent Gross–Pitaevskii equation allows to follow the time evolution of the phonon spectrum and shows that periodic oscillations of the ring radius do not induce modulations in the density profile but give rise to the mixing of clockwise and anticlockwise modes, leading to the creation of pairs of entangled phonons in a squeezed vacuum state, if the drive frequency equals twice the frequency of the phonon mode. …”
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Orbital-order as the driving mechanism for superconductivity in ruthenates by Álvaro Adrián Carrasco Álvarez, Sébastien Petit, Wilfrid Prellier, Manuel Bibes, Julien Varignon

“…Abstract Several materials transition from an insulating to a superconducting state by reducing the strength of the electron-phonon coupling associated with charge and bond orderings provided that the coupling remains strong enough to produce Cooper pairs. …”
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The thermoelectric conversion efficiency problem: Insights from the electron gas thermodynamics close to a phase transition by I. Khomchenko, A. Ryzhov, F. Maculewicz, F. Kurth, R. Hühne, A. Golombek, M. Schleberger, C. Goupil, Ph. Lecoeur, A. Böhmer, G. Benenti, G. Schierning, H. Ouerdane

“…The detrimental effects of lattice phonons on performance can be mitigated, but achieving a high thermoelectric power factor remains a major problem because the Seebeck coefficient and electrical conductivity cannot be jointly increased. …”
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Observation of Pattern Stabilization in a Driven Superfluid by Nikolas Liebster, Marius Sparn, Elinor Kath, Jelte Duchene, Keisuke Fujii, Sarah L. Görlitz, Tilman Enss, Helmut Strobel, Markus K. Oberthaler

“…These patterns emerge due to inherent high-order processes that become relevant in the regime of large phonon occupations. Theoretically, this can be understood as the emergence of a stable fixed point of coupled nonlinear amplitude equations, which include phonon-phonon interactions. …”
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Phase transitions from heating to non-heating in $SU(1,1)$ quantum dynamics: Applications to Bose-Einstein condensates and periodically driven coupled oscillators by Heng-Hsi Li, Po-Yao Chang

“…This discontinuity is not observed in the phonon population.…”
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Short and long-range magnetic ordering and emergent topological transition in (Mn1−xNix)2P2S6 by Nasaru Khan, Deepu Kumar, Shantanu Semwal, Yuliia Shemerliuk, Bernd Büchner, Koushik Pal, Saicharan Aswartham, Pradeep Kumar

“…These transitions are marked by the distinct changes observed in the temperature evolution of the phonon self-energy parameters, modes intensity and dynamic Raman susceptibility.…”
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Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method by Hasan Yilmaz, Masahiko Isobe, Oliver Clemens, Markus Suta, Pascal Puphal

“…Photoluminescence studies at both 77 K and 298 K reveal that the incorporated lanthanoid ions brightly emit and even show unusual transitions due to the low cutoff phonon energy of the host compound that limits non-radiative loss pathways. …”
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Generalized approach for rapid entropy calculation of liquids and solids by Qi-Jun Hong, Zi-Kui Liu

“…The vibrational entropy, typically the predominant contributor to the total entropy, even within the liquid state, is evaluated by computing the phonon density of states via the velocity autocorrelation function. …”
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Microstructure and mechanical property degradation mechanism of Cu–Cr–Zr rail after extreme electromagnetic launches by Chengcheng Li, Weihao Li, Shiyu Hao, Huantong Shi, Li Chen, Chuncai Kong, Feng Jiang, Xingwen Li

“…Theoretical analysis proves the dominant role of the elevated temperature and the thermal phonon-dislocation interactions in reducing the dislocation activation energy and density, which lowers the diffusion coefficient and refines the precipitate by dissolution and re-precipitation induced by the extreme conditions. …”
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Identification of metastable lattice distortion free charge density wave at photoinduced interface via TRARPES by Shaofeng Duan, Binshuo Zhang, Zihao Wang, Shichong Wang, Lingxiao Gu, Haoran Liu, Jiongyu Huang, Jianzhe Liu, Dong Qian, Yanfeng Guo, Wentao Zhang

“…This work provides a new approach to disentangling electronic instabilities from electron-phonon coupling using a nonequilibrium method.…”
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Panoramic analysis of 2D dirubidium telluride monolayer benchmarking the DFT approach by G. Sneha, R. D. Eithiraj

“…The trigonally crystallizing monolayer with an indirect band gap of 1.72 eV may be an upright single-layer that suffices distinct applications. ‘No negative’ phonon bands confirm the dynamical stability of the monolayer. …”
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Quasi one-dimensional organic conductors: from Fröhlich conductivity and Peierls insulating state to magnetically-mediated superconductivity, a retrospective by Jerome, Denis, Bourbonnais, Claude

“…Since the discovery of true metal-like conduction in molecular compounds more than 50 years ago, it appeared that the chemical composition and the quasi one-dimensional crystalline structure of these conductors were determining factors for their physical properties; materials with incommensurate conduction band filling favoring the low-dimensional electron-phonon diverging channel and the establishment of the Peierls superstructure and more rarely superconductivity at low temperature, while those with commensurate band filling favor either magnetic insulating or superconducting states depending on the intensity of the coupling between conductive chains. …”
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The 0ν2β-decay CROSS experiment: preliminary results and prospects by The CROSS collaboration, I. C. Bandac, A. S. Barabash, L. Bergé, M. Brière, C. Bourgeois, P. Carniti, M. Chapellier, M. de Combarieu, I. Dafinei, F. A. Danevich, N. Dosme, D. Doullet, L. Dumoulin, F. Ferri, A. Giuliani, C. Gotti, P. Gras, E. Guerard, A. Ianni, H. Khalife, S. I. Konovalov, E. Legay, P. Loaiza, P. de Marcillac, S. Marnieros, C. A. Marrache-Kikuchi, C. Nones, V. Novati, E. Olivieri, C. Oriol, G. Pessina, D. V. Poda, T. Redon, V. I. Tretyak, V. I. Umatov, M. M. Zarytsky, A. S. Zolotarova

“…In this paper, we demonstrate that ultra-pure superconductive Al films deposited on the crystal surfaces act successfully as pulse-shape modifiers, both with fast and slow phonon sensors. Rejection factors higher than 99.9% of α surface radioactivity have been demonstrated in a series of prototypes based on crystals of Li2MoO4 and TeO2. …”
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Strategic control of excess tellurium to achieve high figure-of-merit in Te-rich Bi0.5Sb1.5Te3 by Ranu Bhatt, Rishikesh Kumar, Pramod Bhatt, Pankaj Patro, Shovit Bhattacharya, Mani Navaneethan, Soumen Samanta, Ajay Singh

“…Microstructural analysis revealed the formation of densely interconnected polycrystalline grains featuring fine grain boundaries, planar/point defects, and strain field domains, contributing towards wide-length scale phonon scattering. The cumulative effect of drastically reduced thermal conductivity (κ ~ 0.8 W/m-K at 300 K), and enhanced power factor resulted in a record zT value ~ 2.2 at 300 K in Bi0.5Sb1.5Te3 + 5 wt% Te, with an average zT value up to 1.35 in temperatures ranging from 303 to 573 K. …”
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