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pro vyhledávání: '"Mcculloch, P."'
The one-dimensional flat-band ferromagnetic Tasaki model exhibits spontaneous symmetry breaking from ${\rm SU}(2)$ to ${\rm U}(1)$ with one type-B Goldstone mode, featuring that the highest weight state is entangled at quarter filling, but there is a
Externí odkaz:
http://arxiv.org/abs/2412.15724
Autor:
Deng, Yu, Xu, Yiyang, Qian, Linglong, Mauger, Charlene, Nasopoulou, Anastasia, Williams, Steven, Williams, Michelle, Niederer, Steven, Newby, David, McCulloch, Andrew, Omens, Jeff, Pushprajah, Kuberan, Young, Alistair
Cardiac Magnetic Resonance (CMR) imaging is widely used for heart modelling and digital twin computational analysis due to its ability to visualize soft tissues and capture dynamic functions. However, the anisotropic nature of CMR images, characteriz
Externí odkaz:
http://arxiv.org/abs/2412.10985
A generic scheme is proposed to investigate the entanglement entropy for a type of scale-invariant states, valid for orthonormal basis states in the ground state subspace of quantum many-body systems undergoing spontaneous symmetry breaking with type
Externí odkaz:
http://arxiv.org/abs/2412.06396
Physical theories have a limited regime of validity and hence must be accompanied by a breakdown diagnostic to establish when they cease to be valid as parameters are varied. For perturbative theories, estimates of the first neglected order offer val
Externí odkaz:
http://arxiv.org/abs/2410.23709
Autor:
Osborne, Jesse J., McCulloch, Ian P.
Numerical methods based on matrix product states (MPSs) are currently the de facto standard for calculating the ground state properties of (quasi-)one-dimensional quantum many-body systems. While the properties of the low-lying excitations in such sy
Externí odkaz:
http://arxiv.org/abs/2408.17117
Autor:
McCulloch, Ryan
Publikováno v:
Innovations in Incidence Geometry: Algebraic, Topological and Combinatorial 2024
In this note we establish a 1-to-1 correspondence between the class of generalized quadrangles with ovoids and the class of balanced incomplete block designs that posses a non-triangular local resolution system and have the appropriate parameters. We
Externí odkaz:
http://arxiv.org/abs/2408.00887
The one-dimensional spin-$s$ ${\rm SU}(2)$ ferromagnetic Heisenberg model, as a paradigmatic example for spontaneous symmetry breaking (SSB) with type-B Goldstone modes (GMs), is expected to exhibit an abstract fractal underlying the ground state sub
Externí odkaz:
http://arxiv.org/abs/2407.17925
Dynamical quantum phase transitions (DQPTs) have been established as a rigorous framework for investigating far-from-equilibrium quantum many-body criticality. Although initially thought to be trivially connected to an order parameter flipping sign,
Externí odkaz:
http://arxiv.org/abs/2407.03394
Steady-state currents generically occur both in systems with continuous translation invariance and in nonequilibrium settings with particle drift. In either case, thermal fluctuations advected by the current act as a source of noise for slower hydrod
Externí odkaz:
http://arxiv.org/abs/2407.03412
We construct an ensemble of two-dimensional nonintegrable quantum circuits that are chaotic but have a conserved particle current, and thus a finite Drude weight. The long-wavelength hydrodynamics of such systems is given by the incompressible Navier
Externí odkaz:
http://arxiv.org/abs/2405.13892