43 citations · 131 across the 13 of their papers we have counts for
13 papers
Some remarks on the horizon in the dust cloud collapse
Koushiki, W. Piechocki, G. Plewa
We examine the existence of an apparent horizon in the collapse of an isolated dust cloud using expansion functions. Our results indicate that in the region of spacetime far away f…
On extra dimensions and the cosmological constant problem
Grzegorz Plewa
We consider a massive scalar field with a coordinate-dependent mass in higher-dimensional spacetime. The field satisfies Dirichlet boundary conditions on a brane representing the f…
Hunting for gravitational quantum spikes
Andrzej Góźdź, Włodzimierz Piechocki, Grzegorz Plewa +1
We present the result of our examination of quantum structures called quantum spikes. The classical spikes, that are known in gravitational systems, occur in the evolution of the i…
Quantum origin of the Minkowski space
Grzegorz Plewa
We show that D=4 Minkowski space is an emergent concept related to a class of operators in extended Hilbert space with no positive-definite scalar product. We start with the idea o…
Quantum Belinski-Khalatnikov-Lifshitz scenario
Andrzej Góźdź, Włodzimierz Piechocki, Grzegorz Plewa
We present the quantum model of the asymptotic dynamics underlying the Belinski-Khalatnikov-Lifshitz (BKL) scenario. The symmetry of the physical phase space enables making use of…
Quantum harmonic oscillator, entanglement in the vacuum and its geometric interpretation
Grzegorz Plewa
Inspired by ER=EPR conjecture we present a mathematical tool providing a link between quantum entanglement and the geometry of spacetime. We start with the idea of operators in ext…