arXiv - PHYS - High Energy Physics - Theory最新文献_第3页

Physical Representations of Corner Symmetries 角对称的物理表示法

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10624

Ludovic Varrin

引用次数: 0

The Quantum Gravity Scale and the Swampland 量子引力尺度与沼泽地

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10003

Alberto Castellano

{"title":"The Quantum Gravity Scale and the Swampland","authors":"Alberto Castellano","doi":"arxiv-2409.10003","DOIUrl":"https://doi.org/arxiv-2409.10003","url":null,"abstract":"This thesis investigates the role of the quantum gravity cut-off for\u0000effective field theories (EFTs) coupled to Einstein gravity, with an emphasis\u0000on its implications at low energies within the context of the Swampland\u0000program. Part I reviews the relevant aspects of string theory compactifications\u0000in different number of spacetime dimensions and with different amounts of\u0000supersymmetry preserved. In Part II a model-independent approach is employed so\u0000as to determine the maximum regime of validity of any such EFT, identifying the\u0000species scale as the natural candidate for the quantum gravity cut-off. We\u0000review various arguments proposed in the literature as well as include several\u0000new considerations on the matter. Part III provides a systematic study of this\u0000framework in string theory compactifications, yielding significant agreement\u0000with the previous perturbative and non-perturbative analysis. We also analyze\u0000various applications of this concept within the Swampland program, including\u0000the purported phenomenon of Emergence. Finally, in Part IV we explore the most\u0000immediate implications that this picture would have in the infrared regime,\u0000thus uncovering intriguing universal properties associated to the\u0000aforementioned energy scale, such as precise lower bounds on its exponential\u0000decay rates as well as certain patterns holding within the infinite distance\u0000corners of moduli space. The thesis includes new results scattered over the\u0000different chapters therein, which have not appeared in the author's original\u0000publications.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gravitational chargegenesis 引力电荷成因

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10605

Martin A. Mojahed, Kai Schmitz, Xun-Jie Xu

{"title":"Gravitational chargegenesis","authors":"Martin A. Mojahed, Kai Schmitz, Xun-Jie Xu","doi":"arxiv-2409.10605","DOIUrl":"https://doi.org/arxiv-2409.10605","url":null,"abstract":"Wash-in leptogenesis is an attractive mechanism to produce the baryon\u0000asymmetry of the Universe. It treats right-handed-neutrino interactions as\u0000spectator processes, on the same footing as electroweak sphalerons, that\u0000reprocess primordial charge asymmetries in the thermal plasma into a\u0000baryon-minus-lepton asymmetry. The origin of these primordial charges must be\u0000accounted for by new $CP$-violating dynamics at very high energies. In this\u0000paper, we propose such a scenario of chargegenesis that, unlike earlier\u0000proposals, primarily relies on new interactions in the gravitational sector. We\u0000point out that a coupling of a conserved current to the divergence of the Ricci\u0000scalar during reheating can lead to nonzero effective chemical potentials in\u0000the plasma that, together with a suitable charge-violating interaction, can\u0000result in the production of a primordial charge asymmetry. Gravitational\u0000chargegenesis represents a substantial generalization of the idea of\u0000gravitational baryogenesis. We provide a detailed analysis of a generic and\u0000minimal realization that is consistent with inflation and show that it can\u0000successfully explain the baryon asymmetry of the Universe.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rindler Wigner distributions for non-vacuum Minkowski states 非真空闵科夫斯基态的林德勒-维格纳分布

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10054

Nitesh K. Dubey, Sanved Kolekar

引用次数: 0

Quantum Anomalies and Parity-odd CFT Correlators for Chiral States of Matter 物质手性态的量子反常和奇偶校验 CFT 关联器

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10480

Claudio Corianó, Stefano Lionetti

引用次数: 0

Off-diagonal coupling of supersymmetric SYK model 超对称 SYK 模型的非对角耦合

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10113

Chenhao Zhang, Wenhe Cai

引用次数: 0

Full-shape analysis with simulation-based priors: cosmological parameters and the structure growth anomaly 基于模拟先验的全形分析：宇宙学参数和结构增长异常

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10609

Mikhail M. Ivanov, Andrej Obuljen, Carolina Cuesta-Lazaro, Michael W. Toomey

{"title":"Full-shape analysis with simulation-based priors: cosmological parameters and the structure growth anomaly","authors":"Mikhail M. Ivanov, Andrej Obuljen, Carolina Cuesta-Lazaro, Michael W. Toomey","doi":"arxiv-2409.10609","DOIUrl":"https://doi.org/arxiv-2409.10609","url":null,"abstract":"We explore full-shape analysis with simulation-based priors, which is the\u0000simplest approach to galaxy clustering data analysis that combines effective\u0000field theory (EFT) on large scales and numerical simulations on small scales.\u0000The core ingredient of our approach is the prior density of EFT parameters\u0000which we extract from a suite of 10500 galaxy simulations based on the halo\u0000occupation distribution (HOD) model. We measure the EFT parameters with the\u0000field-level forward model, which enables us to cancel cosmic variance. On the\u0000theory side, we develop a new efficient approach to calculate field-level\u0000transfer functions using time-sliced perturbation theory and the logarithmic\u0000fast Fourier transform. We study cosmology dependence of EFT parameters of dark\u0000matter halos and HOD galaxies and find that it can be ignored for the purpose\u0000of prior generation. We use neural density estimation to model the measured\u0000distribution of EFT parameters. Our distribution model is then used as a prior\u0000in a reanalysis of the BOSS full-shape galaxy power spectrum data. Assuming the\u0000$Lambda$CDM model, we find significant ($approx 30%$ and $approx 60%$)\u0000improvements for the matter density fraction and the mass fluctuation\u0000amplitude, which are constrained to $Omega_m= 0.315 pm 0.010$ and $sigma_8 =\u00000.671 pm 0.027$. The value of the Hubble constant does not change, $H_0=\u000068.7pm 1.1$ km/s/Mpc. This reaffirms earlier reports of the structure growth\u0000tension from the BOSS data. Finally, we use the measured EFT parameters to\u0000constrain galaxy formation physics.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

UV complete local field theory of persistent symmetry breaking in 2+1 dimensions 2+1 维持久对称破缺的紫外完整局域场理论

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10606

Bilal Hawashin, Junchen Rong, Michael M. Scherer

{"title":"UV complete local field theory of persistent symmetry breaking in 2+1 dimensions","authors":"Bilal Hawashin, Junchen Rong, Michael M. Scherer","doi":"arxiv-2409.10606","DOIUrl":"https://doi.org/arxiv-2409.10606","url":null,"abstract":"Spontaneous symmetry breaking can persist at all temperatures in certain\u0000biconical $mathrm{O}(N)times mathbb{Z}_2$ vector models when the underlying\u0000field theories are ultraviolet complete. So far, the existence of such theories\u0000has been established in fractional dimensions for local but nonunitary models\u0000or in 2+1 dimensions but for nonlocal models. Here, we study local models at\u0000zero and finite temperature directly in 2+1 dimensions employing functional\u0000methods. At zero temperature, we establish that our approach describes the\u0000quantum critical behaviour with high accuracy for all $Ngeq 2$. We then\u0000exhibit the mechanism of discrete symmetry breaking from $mathrm{O}(N)times\u0000mathbb{Z}_2to mathrm{O}(N)$ for increasing temperature near the biconical\u0000critical point when $N$ is finite but large. We calculate the corresponding\u0000finite-temperature phase diagram and further show that the\u0000Hohenberg-Mermin-Wagner theorem is fully respected within this approach, i.e.,\u0000symmetry breaking only occurs in the $mathbb{Z}_2$ sector. Finally, we\u0000determine the critical $N$ above which this phenomenon can be observed to be\u0000$N_c approx 15$.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-Gaussianity Beyond the Scalar Sector: A Search for Tensor and Mixed Tensor-Scalar Bispectra with Planck Data 标量部门之外的非高斯性：利用普朗克数据寻找张量和张量-标量混合双谱

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10595

Oliver H. E. Philcox, Maresuke Shiraishi

{"title":"Non-Gaussianity Beyond the Scalar Sector: A Search for Tensor and Mixed Tensor-Scalar Bispectra with Planck Data","authors":"Oliver H. E. Philcox, Maresuke Shiraishi","doi":"arxiv-2409.10595","DOIUrl":"https://doi.org/arxiv-2409.10595","url":null,"abstract":"Primordial gravitational waves could be non-Gaussian, just like primordial\u0000scalar perturbations. Although the tensor two-point function has thus-far\u0000remained elusive, the three-point function could, in principle, be large enough\u0000to be detected in Cosmic Microwave Background temperature and polarization\u0000anisotropies. We perform a detailed analysis of tensor and mixed tensor-scalar\u0000non-Gaussianity through the Planck PR4 bispectrum, placing constraints on\u0000eleven primordial templates, spanning various phenomenological and physical\u0000regimes including modifications to gravity, additional fields in inflation, and\u0000primordial magnetic fields. All analysis is performed using modern\u0000quasi-optimal binned estimators, and yields no evidence for tensor\u0000non-Gaussianity, with a maximum detection significance of $1.8sigma$. Our\u0000constraints are derived primarily from large-scales (except for\u0000tensor-scalar-scalar models), and benefit greatly from the inclusion of\u0000$B$-modes. Although we find some loss of information from binning, mask effects\u0000and residual foreground contamination, our $f_{rm NL}$ bounds improve over\u0000those of previous analyses by $40-600%$, with six of the eleven models being\u0000analyzed for the first time. Unlike for scalar non-Gaussianity, future\u0000low-noise experiments such as LiteBIRD, the Simons Observatory and CMB-S4, will\u0000yield considerable improvement in tensor non-Gaussianity constraints.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is the real two-Higgs-doublet model consistent? 真实的双希格斯双重模型是否一致？

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-16 DOI: arxiv-2409.10603

Carlos Henrique de Lima, Heather E. Logan

引用次数: 0