- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Relativity and Gravitational Theory
- Education, Psychology, and Social Research
- Quantum many-body systems
- Mathematical and Theoretical Analysis
- Neural Networks and Reservoir Computing
- Theoretical and Computational Physics
- Global Peace and Security Dynamics
- Urological Disorders and Treatments
- Industrial and Mining Safety
- Physics of Superconductivity and Magnetism
- Urinary and Genital Oncology Studies
- Quantum Electrodynamics and Casimir Effect
- Astrophysical Phenomena and Observations
- Quantum Mechanics and Applications
- Radiation Dose and Imaging
- Cutaneous Melanoma Detection and Management
- Ovarian cancer diagnosis and treatment
- Cancer Diagnosis and Treatment
- Radioactivity and Radon Measurements
- Peacebuilding and International Security
Charles University
2023-2025
Czech Academy of Sciences, Institute of Physics
2023
Czech Academy of Sciences
2023
Martin University Hospital
2011
Roosevelt Hospital
2006
Regularized Maxwell electrodynamics is a recently discovered theory of nonlinear electrodynamics, with minimally regularized field strength point charge, that very close to the in many aspects. In this paper we investigate some optical properties its black holes. Namely, study geodesics, gravitational redshift, hole shadow, as well relationship between behavior (null geodesic) Lyapunov exponents and existence thermodynamic critical points both canonical grand-canonical ensembles.
We reconsider various C-metric spacetimes describing charged and (slowly) accelerating AdS black holes in different theories of (non-linear) electrodynamics revisit their thermodynamic properties. Focusing first on the Maxwell theory, we find a parametrization metric where can eliminate non-trivial `normalization' boost Killing vector which was crucial for obtaining consistent thermodynamics previous studies. also calculate Euclidean action using i) standard holographic renormalization ii)...
Abstract In their seminal 1992 paper, Bañados, Teitelboim and Zanelli (BTZ) proposed a simple charged generalization of what is now known as the spinning BTZ black hole, proposal being that rotating metric can be supported by `static vector' potential.
While with such an ansatz Einstein equations are satisfied, corresponding energy-momentum tensor divergence-less, Maxwell do not (due to special degenerate form field strength) hold. More recently, Deshpande Lunin have generalized...
We utilize neural network quantum states (NQS) to investigate the ground state properties of Heisenberg model on a Shastry-Sutherland lattice using variational Monte Carlo method. show that already relatively simple NQSs can be used approximate this in its different phases and regimes. first compare several types with each other small lattices benchmark their energies against exact diagonalization results. argue when precision, generality, computational costs are taken into account, good...
Regularized Maxwell electrodynamics is a recently discovered theory of non-linear electrodynamics, with "minimally regularized" field strength point charge, that "very close" to the in many aspects. In this paper we investigate some optical properties its black holes. Namely, study geodesics, gravitational red-shift, hole shadow, as well relationship between behavior (null geodesic) Lyapunov exponents and existence thermodynamic critical points both canonical grand-canonical ensembles.
In their seminal 1992 paper, Ba\~{n}ados, Teitelboim and Zanelli (BTZ) proposed a simple charged generalization of what is now known as the spinning BTZ black hole, proposal being that rotating metric can be supported by `static vector' potential. While with such an ansatz Einstein equations are satisfied, corresponding energy-momentum tensor divergence-less, Maxwell do not (due to special degenerate form field strength) hold. More recently, Deshpande Lunin have generalized...
Urbancek, S.a; Cernohorska, M.a; Tomkova, J.a; Mensikova, J.c; Mazalova, D.b Author Information
We utilize neural network quantum states (NQS) to investigate the ground state properties of Heisenberg model on a Shastry-Sutherland lattice using variational Monte Carlo method. show that already relatively simple NQSs can be used approximate this in its different phases and regimes. first compare several types with each other small lattices benchmark their energies against exact diagonalization results. argue when precision, generality, computational costs are taken into account, good...