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pro vyhledávání: '"Buniy, Roman V."'
Self-interactions and interaction with the environment tend to push quantum systems toward states of maximal entanglement. This is a definition of decoherence. We argue that these maximally entangled states fall into the well-defined classes that can
Externí odkaz:
http://arxiv.org/abs/2210.07618
Autor:
Buniy, Roman V., Hsu, Stephen D. H.
For any choice of initial state and weak assumptions about the Hamiltonian, large isolated quantum systems undergoing Schrodinger evolution spend most of their time in macroscopic superposition states. The result follows from von Neumann's 1929 Quant
Externí odkaz:
http://arxiv.org/abs/2011.11661
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Autor:
Buniy, Roman V.
We develop a new iterative method for finding approximate solutions for spherical bounces associated with the decay of the false vacuum in scalar field theories. The method works for any generic potential in any number of dimensions, contains Coleman
Externí odkaz:
http://arxiv.org/abs/1610.00018
We suggest a structure for the vacuum comprised of a network of tightly knotted/linked flux tubes formed in a QCD-like cosmological phase transition and show that such a network can drive cosmological inflation. As the network can be topologically st
Externí odkaz:
http://arxiv.org/abs/1508.01458
Autor:
Buniy, Roman V., Kephart, Thomas W.
Publikováno v:
Annals of Physics 344 (2014) 179-193
We propose covariant and non-abelian generalizations of the magnetic helicity and Beltrami equation. The gauge invariance, variational principle, conserved current, energy-momentum tensor and choice of boundary conditions elucidate the subject. In pa
Externí odkaz:
http://arxiv.org/abs/1305.4927
Publikováno v:
Phys. Rev. D 87, 104015 (2013)
The next generation of large scale surveys will not only measure cosmological parameters within the framework of General Relativity, but will also allow for precision tests of the framework itself. At the order of linear perturbations, departures fro
Externí odkaz:
http://arxiv.org/abs/1302.1193
Publikováno v:
Phys. Rev. D 89, 054513 (2014)
We model the observed $J^{++}$ mesonic mass spectrum in terms of energies for tightly knotted and linked chromoelectric QCD flux tubes. The data is fit with one and two parameter models. We predict a possible new state at approximately 1190 MeV and a
Externí odkaz:
http://arxiv.org/abs/1212.1500
Autor:
Buniy, Roman V., Hsu, Stephen D. H.
Publikováno v:
Phys.Lett. B718 (2012) 233-236
We show that big bang cosmology implies a high degree of entanglement of particles in the universe. In fact, a typical particle is entangled with many particles far outside our horizon. However, the entanglement is spread nearly uniformly so that two
Externí odkaz:
http://arxiv.org/abs/1205.1584
Autor:
Buniy, Roman V., Kephart, Thomas W.
Publikováno v:
J. Phys. A: Math. Theor. 45, 185304 (2012)
We provide a classification of entangled states that uses new discrete entanglement invariants. The invariants are defined by algebraic properties of linear maps associated with the states. We prove a theorem on a correspondence between the invariant
Externí odkaz:
http://arxiv.org/abs/1012.2630