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Using the isothermal molecular dynamics (MD), coalescence/sintering of Au nanoparticles (NPs) was simulated by employing the Nose-Hoover thermostat. The MD simulation was realized by using the well-known open program LAMMPS, its version for…

Mesoscale and Nanoscale Physics · Physics 2021-06-29 V. V. Puytov , I. V. Talyzin , V. M. Samsonov

We describe a new table-top electrostatic storage ring concept for $30$ keV polarized ions at frozen spin condition. The device will ultimately be capable of measuring magnetic fields with a resolution of 10$^{-21}$ T with sub-mHz…

High Energy Physics - Experiment · Physics 2023-05-03 Chiara Brandenstein , Stefan Stelzl , Erwin Gutsmiedl , Wolfgang Schott , Andreas Weiler , Peter Fierlinger

We have developed novel instrumentation for making Lagrangian measurements of temperature in diverse fluid flows. A small neutrally buoyant capsule is equipped with on-board electronics which measure temperature and transmit the data via a…

Fluid Dynamics · Physics 2011-12-06 Woodrow L. Shew , Yoann Gasteuil , Mathieu Gibert , Pascal Metz , Jean-Francois Pinton

The careful filtering of microwave electromagnetic radiation is critical for controlling the electromagnetic environment for experiments in solid-state quantum information processing and quantum metrology at millikelvin temperatures. We…

Instrumentation and Detectors · Physics 2014-02-07 G. Tancredi , S. Schmidlin , P. J. Meeson

Ultracold fermionic atoms in optical lattices offer pristine realizations of Hubbard models, which are fundamental to modern condensed matter physics. Despite significant advancements, the accessible temperatures in these optical lattice…

The understanding of complex and/or large vacuum systems operating at cryogenic temperatures requires a specific knowledge of the vacuum science at such temperatures. At room temperature, molecules with a low binding energy to a surface are…

Instrumentation and Detectors · Physics 2020-06-03 Vincent Baglin

Magnetic skyrmions are topologically-protected spin textures that exhibit fascinating physical behaviors and large potential in highly energy efficient spintronic device applications. The main obstacles so far are that skyrmions have been…

Silicon double paddle osillators (DPO) have been successfully used for measuring the elastic properties of amorphous films down to 10 mK (see for example \cite{Fefferman16,Liu14}). Until now, our group has used a wet dilution refrigerator…

Instrumentation and Detectors · Physics 2019-01-30 David Schmoranzer , Sumit Kumar , Annina Luck , Eddy Collin , Andrew Fefferman , Xiao Liu , Thomas Metcalf , Glenn Jernigan

The Abricosov vortex and bundles dynamics was experimentally investigated in Earth's magnetic field range. Isothermal relaxation features in YBCO single crystal samples with strong pinning centers were studied for different sample-field…

Superconductivity · Physics 2012-11-27 V. Yu. Monarkha , V. A. Pashchenko , V. P. Timofeev

We propose a highly feasible technique with no experimental overhead to rapidly cool the in-plane degrees of freedom of large two-dimensional ion crystals in Penning traps. Through simulations, we demonstrate that our approach enables the…

Quantum Physics · Physics 2024-03-04 Wes Johnson , Athreya Shankar , John Zaris , John Bollinger , Scott E. Parker

When designing and studying circuits operating at cryogenic temperatures understanding local heating within the circuits is critical due to the temperature dependence of transistor and noise behavior. We have investigated local heating…

Materials Science · Physics 2010-08-23 J. Hamlet , K. Eng , T. Gurrieri , J. Levy , M. Carroll

We have used two types of thermometry to study thermal fluctuations in a microcantilever-based system below 1 K. We measured the temperature of a cantilever's macroscopic degree-of-freedom (via the Brownian motion of its lowest flexural…

Other Condensed Matter · Physics 2009-11-13 A. C. Bleszynski Jayich , W. E. Shanks , J. G. E. Harris

Light-matter interactions have generated considerable interest as a means to manipulate material properties. Light-induced superconductivity has been demonstrated using pulsed lasers. An attractive alternative possibility is to exploit…

Vibrating wires are common temperature probes in $^3$He experiments. By measuring mechanical resonance of a wire driven by AC current in magnetic field one can directly obtain temperature-dependent viscous damping. This is easy to do in a…

Other Condensed Matter · Physics 2023-03-03 V. V. Zavjalov

This contribution is devoted to cover some technical aspects related to the use of the recently proposed energy probability distribution zeros in the study of phase transitions. This method is based on the partial knowledge of the partition…

Statistical Mechanics · Physics 2017-12-13 L A S Mól , R G M Rodrigues , R A Stancioli , J C S Rocha , B V Costa

The interaction of an object with its surrounding bath can lead to a coupling between the object's internal degrees of freedom and its center-of-mass motion. This coupling is especially important for nanomechanical oscillators, which are…

Instrumentation and Detectors · Physics 2018-04-10 Erik Hebestreit , René Reimann , Martin Frimmer , Lukas Novotny

We performed three independent measurements for a polycristalline, ferromagnetic $GdCo_2$ sample in the temperature range from 300-440 K: chemical potential, current flow through the $GdCo_2-polymer-reference$ $% metal$ sandwich and the…

Strongly Correlated Electrons · Physics 2007-05-23 K. Gatner , A. N. Lachinov , M. Matlak , A. Ślebarski , T. G. Zagurenko

Artificial micro heat engines are prototypical models to explore and elucidate the mechanisms of energy transduction in a regime that is dominated by fluctuations [1-2]. Micro heat engines realized hitherto mimicked their macroscopic…

Statistical Mechanics · Physics 2016-12-21 Sudeesh Krishnamurthy , Subho Ghosh , Dipankar Chatterji , Rajesh Ganapathy , A. K. Sood

Free cooling of granular materials is analyzed on the basis of a pseudo-Liouville operator. Exchange of translational and rotational energy requires surface roughness for spherical grains, but occurs for non-spherical grains, like needles,…

Statistical Mechanics · Physics 2007-05-23 Timo Aspelmeier , Martin Huthmann , Annette Zippelius

Scalable, coherent many-body systems can enable the realization of previously unexplored quantum phases and have the potential to exponentially speed up information processing. Thermal fluctuations are negligible and quantum effects govern…

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