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pro vyhledávání: '"Hook, Daniel W."'
Autor:
Porter, Simon J, Hook, Daniel W
Bibliographic data is a rich source of information that goes beyond the use cases of location and citation -- it also encodes both cultural and technological context. For most of its existence, the scholarly record has changed slowly and hence provid
Externí odkaz:
http://arxiv.org/abs/2404.06500
Autor:
Bender, Carl M., Hook, Daniel W.
Hamilton's equations of motion are local differential equations and boundary conditions are required to determine the solution uniquely. Depending on the choice of boundary conditions, a Hamiltonian may thereby describe several different physically o
Externí odkaz:
http://arxiv.org/abs/2404.00743
Autor:
Bender, Carl M., Hook, Daniel W.
It is generally assumed that a Hamiltonian for a physically acceptable quantum system (one that has a positive-definite spectrum and obeys the requirement of unitarity) must be Hermitian. However, a PT-symmetric Hamiltonian can also define a physical
Externí odkaz:
http://arxiv.org/abs/2312.17386
In 2020 the Australia New Zealand Standard Research Classification Fields of Research Codes (ANZSRC FoR codes) were updated by their owners. This has led the sector to need to update their systems of reference and has caused suppliers working in the
Externí odkaz:
http://arxiv.org/abs/2209.00104
Autor:
Porter, Simon J, Hook, Daniel W
Modern cloud-based data infrastructures open new vistas for the deployment of scientometric data into the hands of practitioners. These infrastructures lower barriers to entry by making data more available and compute capacity more affordable. In add
Externí odkaz:
http://arxiv.org/abs/2112.08472
Autor:
Bender, Carl M., Hook, Daniel W.
This paper reports the results of an ongoing in-depth analysis of the classical trajectories of the class of non-Hermitian $PT$-symmetric Hamiltonians $H=p^2+ x^2(ix)^\varepsilon$ ($\varepsilon\geq0$). A variety of phenomena, heretofore overlooked, h
Externí odkaz:
http://arxiv.org/abs/2103.04214
Autor:
Hook, Daniel W, Porter, Simon J
Cloud computing has the capacity to transform many parts of the research ecosystem, from particular research areas to overall strategic decision making and policy. Scientometrics sits at the boundary between research and the decision making and evalu
Externí odkaz:
http://arxiv.org/abs/2101.09567
Gold open access as characterised by the payment of an article processing charge (APC) has become one of the dominant models in open access publication. This paper examines an extreme hypothetical case in which the APC model is the only model and the
Externí odkaz:
http://arxiv.org/abs/1905.00880
Autor:
Zeitlyn, David, Hook, Daniel W
Academic esteem is difficult to quantify in objective terms. Network theory offers the opportunity to use a mathematical formalism to model both the esteem associated with an academic and the relationships between academic colleagues. Early attempts
Externí odkaz:
http://arxiv.org/abs/1903.01149
Autor:
Bender, Carl M., Hassanpour, Nima, Hook, Daniel W., Klevansky, S. P., Sünderhauf, Christoph, Wen, Zichao
Publikováno v:
Phys. Rev. A 95, 052113 (2017)
PT-symmetric quantum mechanics began with a study of the Hamiltonian $H=p^2+x^2(ix)^\varepsilon$. When $\varepsilon\geq0$, the eigenvalues of this non-Hermitian Hamiltonian are discrete, real, and positive. This portion of parameter space is known as
Externí odkaz:
http://arxiv.org/abs/1702.03811