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1. Do \({\mit \Lambda }_{\mathrm {CC}}\) and \(G\) Run?

   https://doi.org/10.5506/APhysPolB.55.12-A1  

   Donoghue, JF (December 2024, Acta Physica Polonica B)

   No AbstractPublished by the Jagiellonian University2024authors 

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2. Toward extracting scattering phase shift from integrated correlation functions. III. Coupled channels

   https://doi.org/10.1103/PhysRevD.111.054506  

   Guo, Peng; Lee, Frank X (March 2025, Physical Review D)

   The formalism developed in the preceding papers that connects integrated correlation function of a trapped two-particle system to infinite volume scattering phase shift is further extended to coupled-channel systems in the present work. Using a trapped nonrelativistic two-channel system as an example, a new relation is derived that retains the same structure as in the single channel, and has explicit dependence on the phase shifts in both channels but not on the inelasticity. The relation is illustrated by a exactly solvable coupled-channel quantum mechanical model with contact interactions. It is further validated by path integral Monte Carlo simulation of a quasi-one-dimensional model that can admit general interaction potentials. In all cases, we found rapid convergence to the infinite volume limit as the trap size is increased, even at short times, making it potentially a good candidate to overcome signal-to-noise issues in Monte Carlo applications. Published by the American Physical Society2025 

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3. Fermionic tensor network contraction for arbitrary geometries

   https://doi.org/10.1103/PhysRevResearch.7.023193  

   Gao, Yang; Zhai, Huanchen; Gray, Johnnie; Peng, Ruojing; Park, Gunhee; Liu, Wen-Yuan; Kjønstad, Eirik F; Chan, Garnet Kin-Lic (May 2025, Physical Review Research)

   We describe our implementation of fermionic tensor network contraction on arbitrary lattices within both a globally ordered and a locally ordered formalism. We provide a pedagogical description of these two conventions as implemented for the quimb library. Using hyperoptimized approximate contraction strategies, we present benchmark fermionic projected entangled pair state simulations of finite Hubbard models defined on the three-dimensional diamond lattice and random regular graphs. Published by the American Physical Society2025 

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4. Lab icebergs melt down and flip out

   https://doi.org/10.1103/PhysRevFluids.9.110510  

   Johnson, Bobae; Zhang, Zihan; Kim, Alison; Weady, Scott; Ristroph, Leif (November 2024, Physical Review Fluids)

   This paper is associated with a poster winner of a 2023 American Physical Society's Division of Fluid Dynamics (DFD) Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available online at the Gallery of Fluid Motion, . Published by the American Physical Society2024 

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5. Direct observation of entangled electronic-nuclear wave packets

   https://doi.org/10.1103/PhysRevResearch.6.L022047  

   Moğol, Gönenç; Kaufman, Brian; Weinacht, Thomas; Cheng, Chuan; Ben-Itzhak, Itzik (May 2024, Physical Review Research)

   We present momentum resolved covariance measurements of entangled electronic-nuclear wave packets created and probed with octave spanning phaselocked ultrafast pulses. We launch vibrational wave packets on multiple electronic states via multiphoton absorption, and probe these wave packets via strong field double ionization using a second phaselocked pulse. Momentum resolved covariance mapping of the fragment ions highlights the nuclear motion, while measurements of the yield as a function of the relative phase between pump and probe pulses highlight the electronic coherence. The combined measurements allow us to directly visualize the entanglement between the electronic and nuclear degrees of freedom and follow the evolution of the complete wavefunction. Published by the American Physical Society2024 

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