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Non-commutative Gravity and the Einstein-Van der Waals Equation of State
A calculation by Jacobson [1] strongly implies that the field equations which describe gravity are emergent phenomena. In this paper, the method is extended to the case of a non-commutative spacetime. By making use of a non-comm ... Read More >
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Highly Retrievable Spinwave-Photon Entanglement Source
Entanglement between a single photon and a quantum memory forms the building blocks for quantum repeater and quantum network. Previous entanglement sources are typically with low retrieval efficiency, which limits future larger- ... Read More >
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Mild bounds on bigravity from primordial gravitational waves
If the amplitude of primordial gravitational waves is measured in the near-future, what could it tell us about bigravity? To address this question, we study massive bigravity theories by focusing on a region in parameter space w ... Read More >
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Noise in pulsar timing arrays
To successfully detect gravitational waves with pulsar timing arrays, we need to have a comprehensive understanding of the physical origins and statistical characteristics of the noise in pulse arrival times and identify mitigat ... Read More >
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Three-particle Bell-like inequalities under Lorentz transformations
We study the effects of Lorentz transformations on three-particle non-local system states (GHZ and W) of spin 1/2 particles, using the Pauli spin operator and a three-particle generalization of Bell's inequality, introduced by S ... Read More >
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Measuring Infrared Surface Brightness Fluctuation Distances with HST WFC3: Calib ...
We present new calibrations of the near-infrared surface brightness fluctuation (SBF) distance method for the F110W (J) and F160W (H) bandpasses of the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the Hubble Space Telescope ... Read More >
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Modelling high resolution Echelle spectrographs for calibrations: Hanle Echelle ...
We present a modelling scheme that predicts the centroids of spectral line features for a high resolution Echelle spectrograph to a high accuracy. Towards this, a computing scheme is used, whereby any astronomical spectrograph c ... Read More >
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Synchronization in Scale Free networks: The role of finite size effects
Synchronization problems in complex networks are very often studied by researchers due to its many applications to various fields such as neurobiology, e-commerce and completion of tasks. In particular, Scale Free networks with ... Read More >
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A rotating hairy AdS3 black hole with the metric having only one Killing vector ...
We perturbatively construct a three-dimensional rotating AdS black hole with a real scalar hair. We choose the mass of a scalar field slightly above the Breitenlohner-Freedman bound and impose a more general boundary condition f ... Read More >
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Non-equilibrium Theory of Arrested Spinodal Decomposition
The Non-equilibrium Self-consistent Generalized Langevin Equation theory of irreversible relax- ation [Phys. Rev. E (2010) 82, 061503; ibid. 061504] is applied to the description of the non- equilibrium processes involved in the ... Read More >