Zobrazeno 1 - 10
of 4 595
pro vyhledávání: '"Ward, David A."'
Autor:
Ward, David, Aoki, Sinya, Aoki, Yasumichi, Fukaya, Hidenori, Hashimoto, Shoji, Kanamori, Issaku, Kaneko, Takashi, Goswami, Jishnu, Zhang, Yu
We report on the ongoing study of symmetry of $N_f=2$ QCD around the critical temperature. Our simulations of $N_f = 2$ QCD employ the M\"obius domain-wall fermion action with residual mass $\sim 1\mbox{MeV}$ or less, maintaining a good chiral symmet
Externí odkaz:
http://arxiv.org/abs/2412.06574
Autor:
Zhao, Chenyang, Lambrick, Sam M, von Jeinsen, Nick A, Yuan, Yanke, Zhang, Xiaolong, Radić, Aleksandar, Ward, David J, Ellis, John, Jardine, Andrew P
Scanning helium microscopy (SHeM) is an emerging technique that uses a beam of neutral atoms to image and analyse surfaces. The low energies ($\sim$64 meV) and completely non-destructive nature of the probe particles provide exceptional sensitivity f
Externí odkaz:
http://arxiv.org/abs/2410.13955
Autor:
von Jeinsen, Nick, Radic, Aleksandar, Wang, Ke, Zhao, Chenyang, Perez, Vivian, Zhu, Yiru, Chhowalla, Manish, Jardine, Andrew, Ward, David, Lambrick, Sam
We present helium atom micro-diffraction as an ideal technique for characterization of 2D materials due to its ultimate surface sensitivity combined with sub-micron spatial resolution. Thermal energy neutral helium scatters from the valence electron
Externí odkaz:
http://arxiv.org/abs/2409.20461
Autor:
Radic, Aleksandar, von Jeinsen, Nick, Wang, Ke, Zhu, Yiru, Sami, Ismail, Perez, Vivian, Ward, David, Jardine, Andrew, Chhowalla, Manish, Lambrick, Sam
2D materials continue to be pivotal in the advancement of modern devices. Their optoelectronic, mechanical and thermal properties can be finely modulated using a variety of methods, including strain, passivation, doping and defect density. Vacancy-ty
Externí odkaz:
http://arxiv.org/abs/2409.18637
Free-jet atomic, cluster and molecular sources are typically used to produce beams of low-energy, neutral particles and find application in a wide array of technologies, from neutral atom microscopes to instruments for surface processing. However, un
Externí odkaz:
http://arxiv.org/abs/2409.12628
We explore the ultrahigh-vacuum (UHV) compatibility of Formlabs `Clear Resin' via vat photopolymerization (VPP). We report on a method for using VPP additive manufacturing, specifically Formlabs' widely available stereolithographic (SLA) printing usi
Externí odkaz:
http://arxiv.org/abs/2406.08326
Autor:
Aoki, Sinya, Aoki, Yasumichi, Fukaya, Hidenori, Hashimoto, Shoji, Kanamori, Issaku, Kaneko, Takashi, Nakamura, Yoshifumi, Rohrhofer, Christian, Suzuki, Kei, Ward, David
We study the $U(1)_A$ anomaly at high temperatures of $N_f=2+1$ lattice QCD with chiral fermions. Gauge ensembles are generated with M\"obius domain-wall (MDW) fermions, and the measurements are reweighted to those with overlap fermions. We report on
Externí odkaz:
http://arxiv.org/abs/2401.14022
Autor:
Ward, David, Aoki, Sinya, Aoki, Yasumichi, Fukaya, Hidenori, Hashimoto, Shoji, Kanamori, Issaku, Kaneko, Takashi, Goswami, Jishnu, Zhang, Yu
Based on simulations of 2+1 flavor lattice QCD with M\"obius domain wall fermions at high temperatures, we compute a series of spatial correlation functions to study the screening masses in mesonic states. We compare these masses with the symmetry re
Externí odkaz:
http://arxiv.org/abs/2401.07514
Autor:
Radic, Aleksandar, Lambrick, Sam M., von Jeinsen, Nick A., Jardine, Andrew P., Ward, David J.
Three-dimensional mapping of surface structures is important in a wide range of biological, technological, healthcare and research applications, including taxonomy, microfluidics and fabrication. Neutral helium atom beams have been established as a s
Externí odkaz:
http://arxiv.org/abs/2312.11114