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- Institute of PhysicsPL199 papers
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10 papers · 1 filter
A flat band at the chemical potential of a Fe1.03Te0.94S0.06 superconductor observed by angle-resolved photoemission spectroscopy
P. Starowicz, H. Schwab, J. Goraus +6
The electronic structure of superconducting Fe1.03Te0.94S0.06 has been studied by angle resolved photoemission spectroscopy (ARPES). Experimental band topography is compared to the…
Cosmology with a decaying vacuum
K. Urbanowski, M. Szydlowski
Properties of unstable false vacuum states are analyzed from the point of view of the quantum theory of unstable states. Some of false vacuum states survive up to times when their…
Types of tightness in spaces with unconditional basis
A. Manoussakis, A. Pelczar-Barwacz
We present a reflexive Banach space with an unconditional basis which is quasi-minimal and tight by range, i.e. of type (4) in Ferenczi-Rosendal list within the framework of Gowers…
Unbounded Subnormal Composition Operators in L2-Spaces
Piotr Budzynski, Zenon Jan Jablonski, Il Bong Jung +1
A criterion for subnormality of unbounded composition operators in L2-spaces, written in terms of measurable families of probability measures satisfying the so-called consistency c…
Observable phi-eta-star at LHC and second-order QED matrix element in Z/gamma to l+ l- decays
Thi Kieu Oanh Doan, W. Placzek, Z. Was
In a recent publication by ATLAS collaboration a new observable, the so-called phi-star angle, was used for precise measurement of transverse Z momentum. One of the dominant system…
f-vectors implying vertex decomposability
Michał Lasoń
We prove that if a pure simplicial complex of dimension d with n facets has the least possible number of (d-1)-dimensional faces among all complexes with n faces of dimension d, th…