Robustly learning the Hamiltonian dynamics of a superconducting quantum processor.

Precise means of characterizing analog quantum simulators are key to developing quantum simulators capable of beyond-classical computations. Here, we precisely estimate the free Hamiltonian parameters of a superconducting-qubit analog quantum simulator from measured time-series data on up to 14 qubits. To achieve this, we develop a scalable Hamiltonian learning algorithm that is robust against state-preparation and measurement (SPAM) errors and yields tomographic information about those SPAM errors.

Speech intelligibility and its relation to auditory temporal processing in Czech and Swiss German subjects with and without tinnitus.

Purpose: Previous studies have shown that levels for 50% speech intelligibility in quiet and in noise differ for different languages. Here, we aimed to find out whether these differences may relate to different auditory processing of temporal sound features in different languages, and to determine the influence of tinnitus on speech comprehension in different languages.

Methods: We measured speech intelligibility under various conditions (words in quiet, sentences in babble noise, interrupted sentences) along with tone detection thresholds in quiet [PTA] and in noise [PTA], gap detection thresholds [GDT], and detection thresholds for frequency modulation [FMT], and compared them between Czech and Swiss subjects matched in mean age and PTA.

Functional changes in the auditory cortex and associated regions caused by different acoustic stimuli in patients with presbycusis and tinnitus.

Presbycusis and tinnitus are the two most common hearing related pathologies. Although both of these conditions presumably originate in the inner ear, there are several reports concerning their central components. Interestingly, the onset of presbycusis coincides with the highest occurrence of tinnitus.

Quality of life in CRSwNP: evaluation of ACCESS and Lund-Mackay computed tomography scores versus the QoL questionnaire.

Purpose: Recently, a new CT scan classification of the extent of previous endoscopic sinus surgery called The Amsterdam Classification of Completness of Endoscopic Sinus Surgery (ACCESS) was published. The aim of this study was to investigate possible associations between traditionally used Lund-Mackay CT score and ACCESS score and their possible relationship to pre- and postoperative quality of life in a narrowly defined group of patients with recurrent CRSwNP.

Methods: Forty-nine patients who underwent a revision ESS for CRSwNP were enrolled in a retrospective study.

Isomorphism of lattices of subgroups of the layer and rod groups with sublattices of subgroups of the space groups.

Following a brief overview of current knowledge on lattices of subgroups of the space groups, it is shown that in the case of reducible space groups those lattices contain sublattices which are lattice isomorphic to the lattices of subgroups of layer and rod groups. Both sublattices involve the sublattice consisting of equitranslational subgroups.