Finding four six-dimensional mutually unbiased bases (MUBs) containing the identity matrix is a long-standing open problem in quantum information. We show that if they exist, then $$H_2$$ -reducible MUBs has exactly nine $$2\times 2$$ Hadamard submatrices. apply our result to exclude from some known CHMs, such as symmetric matrix, Hermitian Dita family, Bjorck’s circulant and Szollosi family. O...

The dissociative ionization of $H_2^+$ in linearly polarized, 400 nm laser pulses is simulated by solving a three-particle time-dependent Schr\"odinger equation full dimensionality. joint energy spectra (JES) are computed for $\cos^8$ and flat-top envelopes using the surface flux (tSurff) methods. In JES, sharing $n$ photon energies $\omega$ nuclear kinetic release (KER) $E_N$ electronic KER $E...

ABSTRACT Hydroxyl ($\rm OH$) is known to form efficiently in cold gas (T ∼ 100 K) along with the molecule $\rm H_2$ and can be used as an efficient tracer of diffuse molecular interstellar medium (ISM). Using a simple formalism describing H\, I/H_2$ transition reduced network major chemical reactions, we present semi-analytical prescription estimate abundances O-bearing molecules ISM. We show t...

in the present study, advanced oxidation treatment, uv/ was applied to decolourisation of acid orange 8 (ao8). the uv radiation was carried out with a 15 w low-pressure mercury lamp. kinetic model for the decolourisation of the dye was developed based on experimental results and known chemical and photochemical reactions. the observed kinetic reaction constant was determined and correlated as a...