Results 81 to 90 of about 231,112 (338)

Cosmological Landscape and Euclidean Quantum Gravity [PDF]

open access: yes, 2007
Quantum creation of the universe is described by the {\em density matrix} defined by the Euclidean path integral. This yields an ensemble of universes -- a cosmological landscape -- in a mixed quasi-thermal state which is shown to be dynamically more ...
Barvinsky, A O, Kamenshchik, A Yu
core   +3 more sources

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

open access: yesAdvanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed   +7 more
wiley   +1 more source

Vacuum condition and the relation between response parameter and anomaly coefficient in (1+3) dimensions [PDF]

open access: yes, 2014
The role of Israel-Hartle-Hawking vacuum is discussed for anomalous fluid in presence of both the gauge and gravitational anomalies in ($1+3$) dimensions.
Majhi, Bibhas Ranjan
core   +2 more sources

Chiral Anomaly and Eta-Eta' Mixing

open access: yes, 1997
12 page standard Latex file, three figures, added ...
Venugopal, EP, Holstein, BR
openaire   +2 more sources

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

R^4 Couplings in M and Type II Theories [PDF]

open access: yes, 1997
We discuss several implications of R^4 couplings in M theory when compactified on Calabi-Yau (CY) manifolds. In particular, these couplings can be predicted by supersymmetry from the mixed gauge-gravitational Chern-Simons couplings in five dimensions and
Antoniadis   +34 more
core   +4 more sources

Multilevel Anomaly Detection for Mixed Data

open access: yes, 2016
Anomalies are those deviating from the norm. Unsupervised anomaly detection often translates to identifying low density regions. Major problems arise when data is high-dimensional and mixed of discrete and continuous attributes. We propose MIXMAD, which stands for MIXed data Multilevel Anomaly Detection, an ensemble method that estimates the sparse ...
Do, Kien   +2 more
openaire   +2 more sources

Two‐Dimensional Materials as a Multiproperty Sensing Platform

open access: yesAdvanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana   +11 more
wiley   +1 more source

A non-perturbative mixed anomaly and fractional hydrodynamic transport

open access: yesJournal of High Energy Physics
We present a new non-perturbative ’t Hooft anomaly afflicting a quantum field theory with symmetry group G = U(1) × ℤ2 in four dimensions. We use the Adams spectral sequence to compute that the bordism group $${\Omega }_{5}^{{\text{Spin}}}$$ (BG), which ...
Joe Davighi   +2 more
doaj   +1 more source

Splenogonadal fusion: A rare case report and literature review

open access: yesUrology Case Reports, 2020
Splenogonadal fusion is a rare benign congenital anomaly with few cases described in the literature. It is 16 times more common in males than in females.
Abdulrahman Alsunbul   +5 more
doaj   +1 more source

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