Abstract We discuss the elementary errors in Zhang’s (2021 New J. Phys. 23 093014) claimed exact solution of quantum Rabi model. The erroneous is seen to be nothing more than combined simpler Jaynes–Cummings and anti-Jaynes–Cummings models obtained by neglecting terms model Hamiltonian.

Correspondence: Dr Myles, Division of Retrovirology, Walter Reed Army Institute of Research, 1 Taft Ct, Ste 250, Rockville, MD 20850 ([email protected]). Author Contributions: Study concept and design: Myles, Wortmann, Cummings, and Gasser. Acquisition of data: Myles, Wortmann, Cummings, Barthel, Patel, CrumCianflone, Negin, Weina, Ockenhouse, Joyce, Magill, Aronson, and Gasser. Analysis a...

philosophy behind Images of Strategy are outlined. We argue that the conventional twentieth-century history of management and strategy leads us to unquestioningly assume that organizations are, for all people at all times, triangular hierarchies; that strategy is enacted by ‘the men at the top’, and that it is about longterm planning, directing, organizing and controlling. At a philosophical le...

In her article "Innovation and Multimedia in the Poetry of cummings and Mayakovsky" Svetlana Nikitina discusses how e.e. cummings and Vladimir Mayakovsky foreshadowed the digital revolution of today in their multimedia experiments in poetry. Although they spoke different languages and lived in different societies, the two modernist poets display similarities in their modernist aesthetics. Both ...

1 Centre for Healthcare Science Research, Manchester Metropolitan University, Manchester, UK, 2 Department of Anesthesia, Boston Children’s Hospital, Boston, MA, USA, 3 Department of Biomedical Sciences, Tufts University Cummings School of Veterinary Medicine, North Grafton, MA, USA, 4 Department of Infectious Disease and Global Health, Tufts University Cummings School of Veterinary Medicine, N...

In the previous paper, we adopted the method using quantum mutual entropy to measure the degree of entanglement in the time development of the Jaynes-Cummings model [1]. In this paper, we formulate the entanglement in the time development of the Jaynes-Cummings model with squeezed states, and then show that the entanglement can be controlled by means of squeezing.

in this work we investigate the thermal entanglement between two-level atoms and photons in a nonlinear cavity. we consider intensity-dependent couplings and calculate the negativity, as a measure of atom-photonentanglement. the cavity is assumed to be at a temperature t, so that all number of photons, and at the same time, both atomic states, with definite probabilities, are present. we then d...

The theory of non-Hermitian systems and the quantum deformations have attracted a great deal attention in past decades. In general, Hamiltonians are constructed by an ad hoc manner. Here, we study ($2+1$) Dirac oscillator show that context $\ensuremath{\kappa}$-deformed Poincar\'e-Hopf algebra its Hamiltonian is but has real eigenvalues. non-Hermiticity stems from algebra. From mapping Bermudez...