Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session YY06: V: General Physics II |
Hide Abstracts |
Chair: Dominic Alfonso, National Energy Technology Laboratory Room: Virtual Room 6 |
Wednesday, March 22, 2023 10:00AM - 10:12AM |
YY06.00001: Cohomology of the Generalized Newton's Laws Manifolds Zhi an Luan I describe the triplet (G, h, kB) as a kernel of the Generalized Newton's Laws, where G- Newton's Gravity Constant G=2/3 = 0.666 666...; h- Reduced Planck Constant = 2π√3 = 1.088279619x 10 ...; Boltzmann Constant kB = 8√3 = 1.385640646 ... . Above three fundamental constants as exact non-dimensional monodromy varieties have deep importances in theoretical physics. I also found that gcd(h, kB) = gcd (2π√3, 8√3) = 2√3, which is a projection P1 in classical Fano manifolds. This paper will cast new extended Fano complex 2-d manifolds based on an important fact: the first natural sheaves are constant sheaves. These all three classical constants: G, h, kB recast as real constant sheaves such as Gi, hi, kBi i = 1,2,3, ..., such that the Boltzmann sheaves kBn =2√3 × n, where integer n = 1,2,3,4, ... ∞; the Planck sheaves hμ =2π × μ, where real numbers |
Wednesday, March 22, 2023 10:12AM - 10:24AM |
YY06.00002: The Exactness of Supersymmetric Semiclassical Quantization Jonathan Bougie, Asim Gangopadhyaya, Constantin Rasinariu Semiclassical methods such as the WKB approximation can be used to obtain approximate solutions in quantum mechanics. In the context of supersymmetric quantum mechanics (SUSYQM), a supersymmetry-based version of the WKB method applies, known as the SWKB method. For a class of superpotentials known as conventional superpotentials, the SWKB method had been shown on a case-by-case basis to yield exact, rather than approximate solutions. We show that SWKB must be exact for all conventional superpotentials due to their required form arising from additive shape invariance. This exactness applies in both the broken and unbroken phases. |
Wednesday, March 22, 2023 10:24AM - 10:36AM Author not Attending |
YY06.00003: Collective modes of axionic dark matter Benjo J Fraser The axion is a dark matter candidate which displays novel properties because of its small mass. It has self-interactions, which lead to collective modes. We develop a theory of these interacting modes inside a dense body of axions. It takes a various forms, depending on the background we linearize about. The common key feature of these modes is that their dispersion relation is dictated by the coupling strength. Based on work with Alexander Balatsky and Henrik Roising. |
Wednesday, March 22, 2023 10:36AM - 10:48AM |
YY06.00004: A Proposal for Detecting Superfluidity in Neutron Stars Yunjing Gao, Jiahao Yang, Zhenyu Zhu, Yosuke Mizuno, Jianda Wu Based on the GW dispersion relation raised in ``Phys. Rev. D 85, 064036 (2012)'', we investigate the possible reflection of gravitational wave (GW) by superfluidity (SF) in the neutron star, provided its high density and dissipationless properties. Following this scenario, an experimental proposal is raised to probe the expected SF in neutron star by means of GW detection. Two types of binary systems are considered, neutron star-black hole and binary neutron star systems, with weak gravitational field condition imposed. Non-negligible modulation on the total signal caused by the GW reflection is found, which contributes amplitude and phase variations distinguishable from the primitive sine signal. Furthermore, we show that it is possible for such modulations to be detected by the Cosmic Explorer and Einstein Telescope at 100 Mpc. Identification of those signals can evince the existence of the long-sought SF in neutron stars as well as the exotic superfluidity-induced GW reflection. |
Wednesday, March 22, 2023 10:48AM - 11:00AM |
YY06.00005: Dynamics and entanglement in quantum and quantum-classical systems: lessosn for gravity Irfan Javed Motivated by quantum gravity, semiclassical theory, and quantum theory on curved spacetimes, we study the system of an oscillator coupled to two spin-1/2 particles. This model provides a prototype for comparing three types of dynamics: the full quantum theory, the classical oscillator with spin backreaction, and spins propagating on a fixed oscillator background. From calculations of oscillator and entanglement entropy evolution, we find the three systems give equivalent dynamics for sufficiently weak oscillator-spin couplings but deviate significantly for intermediate couplings. These results suggest that semiclassical dynamics with backreaction does not provide a suitable intermediate regime between quantum gravity and quantum theory on curved spacetime. |
Wednesday, March 22, 2023 11:00AM - 11:12AM |
YY06.00006: N-Time Inflationary Model of Universe replacing Big-Bang Model of Universe Surendra Mund In APS March Meeting 2023, I am going to present a new model of Universe- the N-Time Inflationary Model of Universe. This model improves drawbacks in former well established theories of Cosmology like Big Bang Model, Quasi Steady State Cosmology, and Conformal Cyclic Model by Roger Penrose etc. |
Wednesday, March 22, 2023 11:12AM - 11:24AM |
YY06.00007: Inflation as a semiclassical instability Muhammad Muzammil We show that the semiclassical Einstein equation with a quantized massive scalar field permits exact static solutions. The curvature and cosmological constant Λ in the solution arise as quantized values associated to the eigenstates of the scalar field. Linear stability analysis reveals stable and unstable modes that are functions of Λ, and independent of the size and curvature of the static universe. The unstable mode leads naturally to an inflating "emergent" universe. |
Wednesday, March 22, 2023 11:24AM - 11:36AM |
YY06.00008: Time of the Universe from Beginning to End and its Calculation (from Big Bang to Big Bang) Gh. Saleh Considering that the universe was created from the Big Bang phenomenon and the Big Bang is an explosive process, it can be said that the universe continues to expand after the big bang and the galaxies move away from each other. |
Wednesday, March 22, 2023 11:36AM - 11:48AM |
YY06.00009: Disruption of the Standard Model by my Quest/RING Theory Claude Massot My late entering in the fields of Theoretical Physics after an independent scientific engineering career has confronted my own disruptive hypothesis with the century old academic Standard Models. This has led me to new basic interpretations. I reject Michelson's interpretation for the speed of light, in favor of the hypothesis of light photons carried by the gravitational field of the earth. I challenge Einstein's relativity and the ad-hoc Lorentz formula by the hypothesis of the dual complex nature of matter. André Lichnerowicz has unsuccessfully presented my hypothesis at the French Academy of Sciences in 1994. Later on, I have extended my treatment by my QUEST/RING Theory, using quaternion algebra to take into account the inner spins (still crucially missing in relativity) of only two basic elementary particles the proton and the electron. I have reformulated gravity as a tiny electric residual force between the protons and electrons. I am modeling the atomic nucleus as a neutronless quarkless, gluonless, cluster of protons surrounded by rings of MeV electrons and the neutron as a compound of proton and electron. This unites the strong, weak, electric and gravitational forces. My nucleus model challenges present mass spectrometric measurements and atomic mass defects. |
Wednesday, March 22, 2023 11:48AM - 12:00PM |
YY06.00010: Supersymmetry on the lattice: route to flat bands and their topological classification Krishanu Roychowdhury, Simon Trebst, Michael J Lawler, Jan Attig In quantum mechanics, supersymmetry (SUSY) posits an equivalence between two elementary degrees of freedom, bosons and fermions. In this talk, I will show how this fundamental concept can be applied to connect bosonic and fermionic lattice models in the realm of condensed matter physics, e.g., to identify a variety of (bosonic) phonon and magnon lattice models which admit topologically nontrivial free fermion models as superpartners. At the single-particle level, the bosonic and the fermionic models that are generated by the SUSY are isospectral except for zero modes, such as flat bands, whose existence is undergirded by the Witten index of the SUSY theory. We develop a unifying framework to formulate these SUSY connections in terms of general lattice graph correspondences. Notably, a Hermitian form of the supercharge operator, the generator of the SUSY, can itself be interpreted as a hopping Hamiltonian on a bipartite lattice. A five-fold symmetry classification scheme of the SUSY lattice correspondences is derived, including cases with a non-zero Witten index, based on a topological classification of the underlying Hermitian supercharge operator. |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700