Article
Astronomy & Astrophysics
Mohammad Akhond, Andrea Legramandi, Carlos Nunez, Leonardo Santilli, Lucas Schepers
Summary: We study the linear quiver type of five-dimensional N=1 Superconformal Field Theories and deform them by a relevant operator. The free energy is calculated at arbitrary mass parameter values and corresponds to a calculation in the supergravity dual background after regularisation. The F-theorem is verified in both field theory and supergravity for these flows. This letter presents some results from the companion paper [1].
Article
Physics, Multidisciplinary
Adolfo Guarino, Emanuel Malek, Henning Samtleben
Summary: The study analyzes and computes the full bosonic Kaluza-Klein spectrum around the G(2)-invariant nonsupersymmetric AdS(4) solution of massive IIA supergravity and six other nonsupersymmetric AdS(4) solutions, demonstrating their perturbative stability. The findings challenge the swampland conjecture by suggesting potential nonperturbative stability of these AdS vacua.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Particles & Fields
Laura Engelbrecht, Callum R. T. Jones, Shruti Paranjape
Summary: This study initiates a systematic exploration of the self-interactions of a massive spin-2 graviton consistent with up to N = 4 supersymmetry. By employing a recently developed massive on-shell superspace formalism, the most general set of cubic massive graviton amplitudes is constructed in a form that manifests both supersymmetry and Lorentz invariance. It is found that, for N ≥ 3 supersymmetry, the family of consistent interactions coincides with those of the ghost-free dRGT model. In the case of N = 4 supersymmetry, there exists a single consistent cubic interaction which coincides with the unique structure required for the absence of asymptotic superluminality. Furthermore, the structure of interactions in the high-energy limit, connections to supersymmetric Galileons, and the possibility of a supersymmetric massive double copy are discussed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Pietro Ferrero, Jerome P. Gauntlett, Juan Manuel Perez Ipina, Dario Martelli, James Sparks
Summary: The study focuses on constructing supersymmetric AdS solutions in 5-dimensional minimal gauged supergravity, which can uplift to smooth solutions of type IIB supergravity on regular Sasaki-Einstein manifolds. These solutions are dual to d = 2, H = (0, 2) SCFTs, and it is shown that the central charge of the gravity solution matches with a field theory calculation involving D3-branes wrapped on Sigma.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Particles & Fields
Sergei M. Kuzenko, Michael Ponds
Summary: In a conformally flat three-dimensional spacetime, the study investigates the higher-spin Cotton tensor and extends the results from Minkowski space to anti-de Sitter space. The research shows that conformal higher-spin actions can be factorized into first-order operators associated with partially massless AdS values, facilitating the on-shell analysis of massive higher-spin gauge-invariant actions in AdS(3). The main findings are also extended to the case of N = 1 AdS supersymmetry, with simple expressions derived for the higher-spin super-Cotton tensors in AdS(3).
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Nihat Sadik Deger, Jan Rosseel
Summary: A three-dimensional, N = 1 off-shell supersymmetric massive Yang-Mills theory is constructed, with a YM equation that is third-way consistent, achieved by modifying the massive Majorana spinor equation to give a modified YM equation.
Article
Chemistry, Analytical
Wenming Liu, Wenzhu Fu, Meilin Sun, Jinwei Zhang, Tingting Xuanyuan, Xufang Liu, Yujie Zhou
Summary: In this study, a facile microplatform for 3D tumor generation and combinatorial drug screening evaluation was introduced. The chip fabrication using microcontact printing achieved high fidelity and allowed for the controllable and massive production of uniform-sized 3D tumors. The established tumor-on-a-chip system demonstrated high stability and repeatability, making it highly applicable for large-scale analysis and manipulation of 3D tumors.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Wenzhu Fu, Meilin Sun, Jinwei Zhang, Tingting Xuanyuan, Xufang Liu, Yujie Zhou, Wenming Liu
Summary: This study introduces a facile microplatform for generating 3D tumors and evaluating combinatorial drug screening. The high stability and applicability of the tumor-on-a-chip system are demonstrated, offering potential applications in tumor biology, pharmacology, and tissue microengineering.
ANALYTICAL CHEMISTRY
(2023)
Article
Computer Science, Information Systems
Talha Younas, Xuening Xing, Jin Shen, Sohaib Tahir, Muluneh Mekonen, Mingliang Gao
Summary: This paper analyzes the feasibility of wirelessly connecting IoT devices through 3D Massive MIMO systems. By establishing a single-cell 3D Massive MIMO system, detailed channel models for transmission in azimuthal domain and elevation domain, as well as frameworks and equations for bandwidth efficiency and energy efficiency, are provided. Comprehensive simulations are performed with various antenna configurations, and the results validate the superiority of the derived Improved Zero-Forcing (IZF) in terms of bandwidth and energy efficiency. Additionally, it is emphasized that 3D Massive MIMO is one of the most suitable ways to connect IoT devices wirelessly.
Article
Physics, Particles & Fields
Sergei M. Kuzenko, Kai Turner
Summary: The study investigates the massless and massive p-form models in curved space, revealing differences in their quantisation methods but demonstrating that an achievable quantisation can be obtained by introducing a mass term and Stueckelberg reformulation. Additionally, the analysis extends to the case of massive super p-forms coupled to background N=1 supergravity, showing interesting relationships between the effective actions of different multiplets.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Ignatios Antoniadis, Jules Cunat, Anthony Guillen
Summary: We extend the 2 -> 2 gravitino scattering amplitude computed in [1] to an arbitrary N = 1 supergravity model with supersymmetry breaking. We find that the cancellation of leading terms in the amplitude at a certain scale is a consequence of the vanishing of the scalar potential at its minimum. We also analyze the inclusion of new Fayet-Iliopoulos terms and find that they generally lead to uncanceled leading terms in the amplitude.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Palash Dubey, Chethan N. Gowdigere
Summary: This study focuses on gravitini zero modes in four-dimensional N = 2 pure supergravity theory, analyzing their solutions to the Rarita-Schwinger equations. By reducing these equations to linear coupled partial differential equations on R-3, the study reveals the emergence of gravitini zero modes due to broken supersymmetries, along with other solutions characterized by four integration constants, including extra fermion zero modes. Further analysis indicates the presence of four independent extra zero modes in pure gauge solutions.
Article
Computer Science, Information Systems
Yu-Hang Zhang, Chang Wen, Min Zhang, Kai Xie, Jian-Biao He
Summary: This article proposes a visualization method based on variational deep embedding clustering fusion Hilbert R-tree to solve the slow display and stuttering issues when rendering massive geological data. By constructing an efficient data index structure and integrating deep clustering algorithms and space-filling curves, the indexing efficiency is improved. Moreover, this method combines time forecasting, data scheduling, and loading modules to improve the accuracy and real-time data display rate, thereby enhancing the stability of 3D visualization of large-scale geological data.
Article
Physics, Multidisciplinary
Tekin Dereli, Cem Yetismisoglu
Summary: In this article, the formulation of cosmological topologically massive supergravity theory in three-dimensional Riemann-Cartan space-times is discussed using the language of exterior differential forms and Majorana spinors. The local supersymmetry of the action density is explicitly demonstrated, and exact coupled field equations are derived by a first order variational principle subject to a torsion-constraint imposed by Lagrange multipliers. Cotton and Cottino 2-forms complete to all orders in the gravitino field are derived and their properties are investigated.
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Carlos F. Lopez, Cheng-Xiang Wang, Yi Zheng
Summary: This paper proposes a novel space-time non-stationary 3D wideband massive MIMO channel model and introduces a ray-level process and a Gamma-Poisson mixture distribution method. By deriving key statistical properties and analyzing their impacts, the correctness of the proposed model is verified.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Physics, Multidisciplinary
Eric A. Bergshoeff, Jan Rosseel, Paul K. Townsend
PHYSICAL REVIEW LETTERS
(2018)
Article
Physics, Particles & Fields
Nihat Sadik Deger, George Moutsopoulos, Jan Rosseel
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Physics, Multidisciplinary
Eric A. Bergshoeff, Jaume Gomis, Jan Rosseel, Ceyda Simsek, Ziqi Yan
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2020)
Article
Physics, Particles & Fields
E. A. Bergshoeff, A. Chatzistavrakidis, J. Lahnsteiner, L. Romano, J. Rosseel
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
E. A. Bergshoeff, J. Lahnsteiner, L. Romano, J. Rosseel, C. Simsek
Summary: The discussion focuses on a specific non-relativistic limit of NS-NS gravity that can be achieved at the level of the action and equations of motion without imposing any geometric constraints manually. The cancellation of divergences between terms that arise from the Vielbein in the Einstein-Hilbert term and from the kinetic term of the Kalb-Ramond two-form field is key to this limit. This leads to the emergence of a local target space scale invariance in the limit, resulting in an extra equation in the equations of motion compared to the action limit. The geometric constraints that can be solved by scale-invariant constraints define a Dilatation invariant String Newton-Cartan geometry.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
E. A. Bergshoeff, J. Lahnsteiner, L. Romano, J. Rosseel, C. Simsek
Summary: We constructed a non-relativistic limit of ten-dimensional N = 1 supergravity by imposing geometric constraints that define a 'self-dual' Dilatation-invariant String Newton-Cartan geometry. The non-relativistic action exhibits three emerging symmetries: one local scale symmetry and two local conformal supersymmetries. Due to these emerging symmetries, certain equations were obtained through supersymmetry variation rather than direct variation of the non-relativistic action.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Multidisciplinary
Nihat Sadik Deger, Marc Geiller, Jan Rosseel, Henning Samtleben
Summary: The minimal massive gravity model in three dimensions propagates a single massive spin-2 mode around an anti-de Sitter vacuum, allowing for vacua with positive central charges and a bulk graviton of positive energy. Surprisingly, all vacua complying with bulk and boundary unitarity appear to break supersymmetry spontaneously in the supersymmetric extension of the model.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Particles & Fields
E. A. Bergshoeff, J. Lahnsteiner, L. Romano, J. Rosseel
Summary: We construct the basic Neveu-Schwarz (NS) brane solutions of non-relativistic string theory using longitudinal T-duality as a solution generating technique. By extending the NS background fields to a supergravity multiplet, we confirm that all solutions found are half-supersymmetric. These solutions can be interpreted as the background geometry outside a string-like object, with the winding string being part of the on-shell spectrum and the unwound string only making sense off-shell.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Astronomy & Astrophysics
E. A. Bergshoeff, K. van Helden, J. Lahnsteiner, L. Romano, J. Rosseel
Summary: We discuss the generalized Newton-Cartan geometries as gravitational background fields for particles and strings, introducing torsionful geometries with independent torsion tensors to define affine connections invariant under all symmetries of the structure group. We find that some of the torsion tensors are intrinsic torsion tensors, and setting certain components to zero leads to geometry constraints. By considering constraints consistent with the structure group symmetries, we reproduce several previously known results.
CLASSICAL AND QUANTUM GRAVITY
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Eric Bergshoeff, Johannes Lahnsteiner, Luca Romano, Jan Rosseel, Ceyda Simsek
Summary: In this article, the non-relativistic limits of general relativity are discussed, focusing on a special finely tuned limit inspired by string theory. This limit involves adding the kinetic term of a one-form gauge field to the Einstein-Hilbert action, resulting in a finite invariant non-relativistic gravity action. This action allows for an underlying torsional Newton-Cartan geometry, but lacks the Poisson equation for the Newton potential. Extensions to include this equation are mentioned for further research.
GEOMETRIC SCIENCE OF INFORMATION (GSI 2021)
(2021)
Article
Astronomy & Astrophysics
Nihat Sadik Deger, Jan Rosseel
Summary: A three-dimensional, N = 1 off-shell supersymmetric massive Yang-Mills theory is constructed, with a YM equation that is third-way consistent, achieved by modifying the massive Majorana spinor equation to give a modified YM equation.
Proceedings Paper
Quantum Science & Technology
Eric Bergshoeff, Jan Rosseel, Paul Townsend
32ND INTERNATIONAL COLLOQUIUM ON GROUP THEORETICAL METHODS IN PHYSICS (GROUP32)
(2019)
Article
Physics, Particles & Fields
Eric A. Bergshoeff, Jan Rosseel, Paul K. Townsend
PHYSICS OF PARTICLES AND NUCLEI
(2018)
Proceedings Paper
Computer Science, Artificial Intelligence
Eric Bergshoeff, Athanasios Chatzistavrakidis, Luca Romano, Jan Rosseel
GEOMETRIC SCIENCE OF INFORMATION, GSI 2017
(2017)
Article
Physics, Particles & Fields
Eric A. Bergshoeff, Jan Rosseel, Thomas Zojer
PHYSICS OF PARTICLES AND NUCLEI LETTERS
(2017)
