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Flat space cosmology spacetimes are exact time-dependent solutions of 3-dimensional gravity theories, such as Einstein gravity or topologically massive gravity. We exhibit a novel kind of phase transition between these cosmological…

高能物理 - 理论 · 物理学 2013-11-13 Arjun Bagchi , Stephane Detournay , Daniel Grumiller , Joan Simon

We assume that the Universe has a non trivial topology whose compact spatial sections have a volume significantly smaller than the horizon volume. By a topological lens effect, such a "folded" space configuration generates multiple images…

广义相对论与量子宇宙学 · 物理学 2011-05-23 R. Lehoucq , M. Lachieze-Rey , J. P. Luminet

Framed combinatorial topology is a novel theory describing combinatorial phenomena arising at the intersection of stratified topology, singularity theory, and higher algebra. The theory synthesizes elements of classical combinatorial…

几何拓扑 · 数学 2021-12-30 Christoph Dorn , Christopher L. Douglas

We consider multiverses as time-amalgamated multiply warped products of Lorentzian (Einstein) manifolds. We define the Local Multiverse as timely-connected component of our physical (3+1)-spacetime. It is a collection of ``parallel…

广义相对论与量子宇宙学 · 物理学 2021-12-28 Igor Yu. Potemine

Time is, figuratively and literally, becoming the new dimension for crystalline matter. As such, rapid recent progress on time-varying media gave rise to the notion of temporal and spatiotemporal crystals. Fundamentally rethinking the role…

It is often conjectured that a choice of time function merely sets up a frame for the quantum evolution of gravitational field, meaning that all choices should be in some sense compatible. In order to explore this conjecture (and the…

广义相对论与量子宇宙学 · 物理学 2015-07-06 Przemyslaw Malkiewicz

Topological orders are a prominent paradigm for describing quantum many-body systems without symmetry-breaking orders. We present a topological quantum field theoretical (TQFT) study on topological orders in five-dimensional spacetime…

高能物理 - 理论 · 物理学 2022-04-25 Zhi-Feng Zhang , Peng Ye

The proper resolution of the so-called measurement problem requires a "top-down" conception of the quantum world that is opposed to the usual "bottom-up" conception, which builds on an intrinsically and maximally differentiated manifold.…

量子物理 · 物理学 2011-05-25 Ulrich Mohrhoff

The possibility of deforming the (associative or Lie) product to obtain alternative descriptions for a given classical or quantum system has been considered in many papers. Here we discuss the possibility of obtaining some novel alternative…

量子物理 · 物理学 2008-11-26 E. Ercolessi , A. Ibort , G. Marmo , G. Morandi

A model of topological field theory is presented in which the vacuum coupling constants are topological invariants of the four-dimensional spacetime. Thus the coupling constants are theoretically computable, and they indicate the…

广义相对论与量子宇宙学 · 物理学 2016-11-15 N. V. Mitskievich , V. N. Efremov , A. M. Hernández Magdaleno

Teleparallel gravity offers a new avenue in which to construct gravitational models beyond general relativity. While teleparallel gravity can be framed in a way to be dynamically equivalent to general relativity, its modifications are…

广义相对论与量子宇宙学 · 物理学 2021-01-28 Sebastian Bahamonde , Viktor Gakis , Stella Kiorpelidi , Tomi Koivisto , Jackson Levi Said , Emmanuel N. Saridakis

A new cosmological object in analogy with the concept of a wormhole in general relativity is introduced. As wormholes connect two distant points through a tunnel in spacetime, this new object connects two spacetime through a large mouth…

广义相对论与量子宇宙学 · 物理学 2022-11-28 S. Danial Forghani , S. Habib Mazharimousavi

A random field that is empirically equivalent to the quantized electromagnetic field is constructed. A mapping between the creation and annihilation operator algebras of a random field and of the quantized electromagnetic field provides a…

量子物理 · 物理学 2011-10-11 Peter Morgan

The geometry of parallelizable manifolds (i.e., teleparallelism) is summarized in the language of local frame fields. Some problems in continuum mechanics that relate to the couple-stresses that are produced in the bending and twisting of…

广义相对论与量子宇宙学 · 物理学 2013-05-16 D. H. Delphenich

A new interpretation of the basic vector |0> of the free Fock space (FFS) and the FFS is proposed. The approximations to various equations with additional parameters, for n-point information (n-pi), are also considered in the case of…

综合物理 · 物理学 2012-06-21 Jerzy Hanckowiak

We explain that a bulk with arbitrary dimensions can be added to the space over which a quantum field theory is defined. This gives a TQFT such that its correlation functions in a slice are the same as those of the original quantum field…

高能物理 - 理论 · 物理学 2016-09-06 Laurent Baulieu

A new approach is suggested to the problem of quantising causal sets, or topologies, or other such models for space-time (or space). The starting point is the observation that entities of this type can be regarded as objects in a category…

广义相对论与量子宇宙学 · 物理学 2007-05-23 C. J. Isham

The geometrical description of Quantum Mechanics is reviewed and proposed as an alternative picture to the standard ones. The basic notions of observables, states, evolution and composition of systems are analised from this perspective, the…

数学物理 · 物理学 2019-03-26 Florio M. Ciaglia , Alberto Ibort , Giuseppe Marmo

Theoretical and observational arguments are listed in favor of a new principle of relativity of units of measurements as the basis of a conformal-invariant unification of General Relativity and Standard Model by replacement of all masses…

广义相对论与量子宇宙学 · 物理学 2007-05-23 V. Pervushin , V. Zinchuk , A. Zorin

To each local field (including the real or complex numbers) we associate a quantum dilogarithm and show that it satisfies a pentagon identity and some symmetries. Using an angled version of these quantum dilogarithms, we construct three…

几何拓扑 · 数学 2023-06-06 Stavros Garoufalidis , Rinat Kashaev
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