Integrable Open Spin Chains from Flavored ABJM Theory

We compute the two-loop anomalous dimension matrix in the scalar sector of planar ${\cal N}=3$ flavored ABJM theory. Using coordinate Bethe ansatz, we obtain the reflection matrix and confirm that the boundary Yang-Baxter equations are satisfied. This establishes the integrability of this theory in the scalar sector at the two-loop order.Comment: v2, 25 pages, 2 figures, minor corrections, references adde

Two-Loop Integrability of ABJM Open Spin Chain from Giant Graviton

We prove the integrability of the two-loop open spin chain Hamiltonian from ABJM determinant like operators given in arXiv:1809.09941. By explicitly constructing R-matrices and K-matrices, we successfully obtain the two-loop Hamiltonian from the double row transfer matrices. This proves the integrability of our two-loop Hamiltonian. Based on the vacuum eigenvalues of the transfer matrices, we make a conjecture on the eigenvalues of the transfer matrices for general excited states. Bethe ansatz equations are simply obtained from the analytic conditions at the superficial poles of the eigenvalues.Comment: v3, appendix B added, notation for indices of R and K matrices unified, typoes fixed, published version, 22 pages; v2, 21 pages, no figures, typoes fixed, minor change

Neurochemical characterization of extrinsic nerves in myenteric ganglia of the guinea pig distal colon

"This is the peer reviewed version of the following article: [Chen, B. N., Sharrad, D. F., Hibberd, T. J., Zagorodnyuk, V. P., Costa, M. and Brookes, S. J.H. (2015), Neurochemical characterization of extrinsic nerves in myenteric ganglia of the guinea pig distal colon. J. Comp. Neurol., 523: 742–756. doi: 10.1002/cne.23704], which has been published in final form at [http://dx.doi.org/10.1002/cne.23704]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. http://olabout.wiley.com/WileyCDA/Section/id-820227.html#terms"Extrinsic nerves to the gut influence the absorption of water and electrolytes and expulsion of waste contents, largely via regulation of enteric neural circuits; they also contribute to the control of blood flow. The distal colon is innervated by extrinsic sympathetic and parasympathetic efferent and spinal afferent neurons, via axons in colonic nerve trunks. In the present study, biotinamide tracing of colonic nerves was combined with immunohistochemical labeling for markers of sympathetic, parasympathetic and spinal afferent neurons to quantify their relative contribution to the extrinsic innervation. Calcitonin gene-related peptide, vesicular acetylcholine transporter and tyrosine hydroxylase, which selectively label spinal afferent, parasympathetic and sympathetic axons, respectively, were detected immunohistochemically in 1 ± 0.5% (n = 7), 15 ± 4.7% (n = 6) and 24 ± 4% (n = 7) of biotinamide-labeled extrinsic axons in myenteric ganglia. Immunoreactivity for vasoactive intestinal polypeptide, nitric oxide synthase, somatostatin, vesicular glutamate transporters 1 and 2 accounted for a combined maximum of 14% of biotinamide-labeled axons in myenteric ganglia. Thus, a maximum of 53% of biotinamide-labeled extrinsic axons in myenteric ganglia were labeled by antisera to one of these eight markers. Viscerofugal neurons were also labeled by biotinamide, and shown to have distinct morphologies and spatial distributions that correlated closely with their immunoreactivity for nitric oxide synthase and choline acetyltransferase. As reported for the rectum, nearly half of all extrinsic nerve fibers to the distal colon lack the key immunohistochemical markers commonly used for their identification. Their abundance may therefore have been significantly underestimated in previous immunohistochemical studies

Depth Completion with Multiple Balanced Bases and Confidence for Dense Monocular SLAM

Dense SLAM based on monocular cameras does indeed have immense application value in the field of AR/VR, especially when it is performed on a mobile device. In this paper, we propose a novel method that integrates a light-weight depth completion network into a sparse SLAM system using a multi-basis depth representation, so that dense mapping can be performed online even on a mobile phone. Specifically, we present a specifically optimized multi-basis depth completion network, called BBC-Net, tailored to the characteristics of traditional sparse SLAM systems. BBC-Net can predict multiple balanced bases and a confidence map from a monocular image with sparse points generated by off-the-shelf keypoint-based SLAM systems. The final depth is a linear combination of predicted depth bases that can be optimized by tuning the corresponding weights. To seamlessly incorporate the weights into traditional SLAM optimization and ensure efficiency and robustness, we design a set of depth weight factors, which makes our network a versatile plug-in module, facilitating easy integration into various existing sparse SLAM systems and significantly enhancing global depth consistency through bundle adjustment. To verify the portability of our method, we integrate BBC-Net into two representative SLAM systems. The experimental results on various datasets show that the proposed method achieves better performance in monocular dense mapping than the state-of-the-art methods. We provide an online demo running on a mobile phone, which verifies the efficiency and mapping quality of the proposed method in real-world scenarios

Cryptanalysis of optical ciphers integrating double random phase encoding with permutation

This paper presents the cryptanalysis of optical ciphers combining double random phase encoding with permutation techniques, and shows its vulnerability against plaintext attack regardless of the implementation order of the two procedures. The equivalent secret keys of both the combination fashions can be retrieved, instead of the recovery of random phase masks and permutation matrix. Numerical simulations are also given for validation