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8 papers · 2 filters
Spread complexity for measurement-induced non-unitary dynamics and Zeno effect
Aranya Bhattacharya, Rathindra Nath Das, Bidyut Dey +1
Using spread complexity and spread entropy, we study non-unitary quantum dynamics. For non-hermitian Hamiltonians, we extend the bi-Lanczos construction for the Krylov basis to the…
Generalized skyrmion crystals with applications to neutron stars
Paul Leask, Miguel Huidobro, Andrzej Wereszczynski
In this article we study properties of isospin asymmetric nuclear matter in the generalized Skyrme model. This is achieved by canonically quantizing the isospin collective degrees…
Moduli Space for Kink Collisions with Moving Center of Mass
Christoph Adam, Chris Halcrow, Katarzyna Oles +2
We apply the collective coordinate model framework to describe collisions of a kink and an antikink with nonzero total momentum, i.e., when the solitons possess different velocitie…
Spectral properties of critical 1+1D Abelian-Higgs model
Titas Chanda, Marcello Dalmonte, Maciej Lewenstein +2
The presence of gauge symmetry in 1+1D is known to be redundant, since it does not imply the existence of dynamical gauge bosons. As a consequence, in the continuum, the Abelian-Hi…
Pseudogauge freedom and the SO(3) algebra of spin operators
Sourav Dey, Wojciech Florkowski, Amaresh Jaiswal +1
The energy-momentum and spin tensors for a given theory can be replaced by alternative expressions that obey the same conservation laws for the energy, linear momentum, as well as…
Electric field-based quantization of the gauge invariant Proca theory
Bogdan Damski
We consider the gauge invariant version of the Proca theory, where besides the real vector field there is also the real scalar field. We quantize the theory such that the commutato…