Anomalous transport on a corrugated ratchet potential Mazzitello, Karina Irma; Zarlenga, Daniel Gustavo; Arizmendi, Constancio Miguel
Journal of physics. Conference series,
07/2021, Volume:
1978, Issue:
1
Journal Article
Peer reviewed
Open access
Abstract
We present an extensive study the motion of particles in a rocking ratchet potential corrugated by quenched correlated disorder. The spatial disorder slows down the collective motion of ...particles. Anomalous transport in its both forms, subdiffusion and superdiffusion has been observed at long times. We provide a qualitative explanation for the origin of these anomalies. These behaviors are a direct consequence of the interplay between the ratchet potential roughness and the temperature of the system. In the same way as Khoury et al 1, we find a relation between the mean velocity of the particles and the different kinds of diffusion at long time.
Round table on Standard Model Anomalies Kotwal, Ashutosh V.; Matias, Joaquim; Mauri, Andrea ...
EPJ Web of Conferences,
2022, Volume:
274
Journal Article, Conference Proceeding
Peer reviewed
Open access
This contribution to “The XVth Quark confinement and the Hadron spectrum conference" covers a description, both theoretical and experimental, of the present status of a set of very different ...anomalies. The discussion ranges from the long standing
b
→
sℓℓ
anomalies, (
g
− 2) and the new
M
W
anomaly.
Full text
Available for:
IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
We show that a model with a scalar leptoquark of hypercharge Y=1/6 which includes light right-handed neutrinos can successfully describe both of the B-physics anomalies, RKexp<RKSM and RDexp>RDSM. We ...discuss the corresponding low energy effective theory and, after using the known experimental data as constraints, we show that the model is viable and that it offers several predictions which can be tested experimentally.
Full text
Available for:
CMK, CTK, FMFMET, IJS, NUK, PNG, UM
The long‐term memory of the ocean makes sea surface temperature anomalies (SSTAs) become a significant predictor for the subsequent atmosphere, and the tropical ocean is primarily regarded as a major ...source of atmospheric anomalies. While in North Pacific, the local midlatitude SSTAs also have large contributions but have not been adequately considered yet. We discover a strong connection between the Kuroshio‐Oyashio Extension (KOE) SSTAs in spring and the local atmospheric circulation anomalies in following summer at interannual timescale, wherein, the spring KOE SSTAs are generally independent of tropical ocean, and they are primarily induced by the concurrent atmospheric anomalies via surface heat flux and ocean dynamic processes. The spring KOE SSTAs can persist to summer, and then generate nearly reversed whole‐layer atmospheric circulation anomalies in their north side through both diabatic heating and atmospheric transient eddy forcing. Consequently, precipitation anomalies in Pan‐Pacific regions are distinctly modulated from spring to summer.
Plain Language Summary
Because of the vast heat‐holding capacity and the long‐term memory of ocean, sea surface temperature anomalies (SSTAs) are usually taken as the significant factors to understand and predict climate anomalies. On interannual timescale, attentions have primarily centered on the tropical SSTAs, but recent studies indicated that the SSTAs in mid‐to‐high latitudes, especially in the Kuroshio‐Oyashio Extension (KOE) could have important feedbacks on the atmosphere. In this study, the KOE SSTAs in spring are discovered to have large interannual variability, and they are independent of the tropical SSTAs but closely linked to the subsequent summer atmospheric anomalies. It is found that the spring KOE SSTAs are mainly forced by the atmosphere via the surface heat flux and the ocean dynamic processes. In turn, they can persist to summer, and then play a dominant role in the air‐sea interaction in North Pacific, inducing remarkable geopotential height anomalies in north side. Consequently, in terms of the KOE SSTAs evolving from spring to summer, the Pan‐Pacific precipitation anomalies are distinctly modulated due to the opposite air‐sea interaction processes in the two seasons. These findings advocate for the use of springtime KOE SSTAs as a predictive indicator for following summer atmospheric and precipitation conditions.
Key Points
The spring Kuroshio‐Oyashio Extension (KOE) sea surface temperature anomalies (SSTAs) are independent of tropical ocean and primarily forced by the concurrent local atmosphere at interannual timescale
The spring KOE SSTAs can persist to summer and exert a delayed cross‐season impact on the subsequent summer atmosphere
Associated with the spring KOE SSTAs, precipitation anomalies in Pan‐Pacific regions are distinctly modulated from spring to summer
Full text
Available for:
FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SBCE, SBMB, UL, UM, UPUK
We explore constraints on (1+1)d unitary conformal field theory with an internal ZN global symmetry, by bounding the lightest symmetry-preserving scalar primary operator using the modular bootstrap. ...Among the other constraints we have found, we prove the existence of a ZN-symmetric relevant/marginal operator if N−1≤c≤9−N for N≤4, with the end points saturated by various Wess-Zumino-Witten models that can be embedded into (e8)1. Its existence implies that robust gapless fixed points are not possible in this range of c if only a ZN symmetry is imposed microscopically. We also obtain stronger, more refined bounds that depend on the 't Hooft anomaly of the ZN symmetry.
Full text
Available for:
CMK, CTK, FMFMET, IJS, NUK, PNG, UM
PDF
