41 citations · 164 across the 14 of their papers we have counts for
15 papers
Acceleration radiation and HBAR thermodynamics for atoms falling into a BTZ black hole: A CQM quantum-optics approach
H. E. Camblong, A. Chakraborty, C. R. Ordóñez +3
Atoms falling freely into a Bañados-Teitelboim-Zanelli (BTZ) black hole in a Boulware-like vacuum are shown to emit radiation with a Planck spectrum at the Hawking temperature $T_{…
Quantum aspects of spacetime: A quantum optics view of acceleration radiation and black holes
C. R. Ordonez, A. Chakraborty, H. E. Camblong +2
For the centennial of quantum mechanics, we offer an overview of the central role played by quantum information and thermalization in problems involving fundamental properties of s…
Conformal quantum mechanics of causal diamonds: Quantum instability and semiclassical approximation
H. E. Camblong, A. Chakraborty, P. Lopez-Duque +1
Causal diamonds are known to have thermal behavior that can be probed by finite-lifetime observers equipped with energy-scaled detectors. This thermality can be attributed to the t…
Conformal quantum mechanics of causal diamonds: Time evolution, thermality, and instability via path integral functionals
H. E. Camblong, A. Chakraborty, P. Lopez-Duque +1
An observer with a finite lifetime perceives the Minkowski vacuum as a thermal state at temperature , as a result of being constrained t…
Entanglement Degradation in Causal Diamonds
H. E. Camblong, A. Chakraborty, P. Lopez-Duque +1
Entanglement degradation appears to be a generic prediction in relativistic quantum information whenever horizons restrict access to a region of spacetime. This property has been p…
Path integral derivation of the thermofield double state in causal diamonds
Abhijit Chakraborty, Carlos R. Ordóñez, Gustavo Valdivia-Mera
In this article, we adopt the framework developed by R. Laflamme in \textit{Physica A}, \textbf{158}, pp. 58-63 (1989) to analyze the path integral of a massless -- conformally inv…
Spectral Properties of the Symmetry Generators of Conformal Quantum Mechanics: A Path-Integral Approach
H. E. Camblong, A. Chakraborty, P. Lopez-Duque +1
A path-integral approach is used to study the spectral properties of the generators of the SO(2,1) symmetry of conformal quantum mechanics (CQM). In particular, we consider the CQM…
Thermal effect in a causal diamond: open quantum systems approach
Abhijit Chakraborty, Horacio Camblong, Carlos Ordonez
A static observer with a finite lifetime has causal access to only a limited region of spacetime known as the causal diamond. The presence of an apparent horizon in the causal diam…
Aggregation of self-propelled particles with sensitivity to local order
Kunal Bhattacharya, Abhijit Chakraborty
We study a system of self-propelled particles (SPPs) in which individual particles are allowed to switch between a fast aligning and a slow nonaligning state depending upon the deg…
Quantum optics meets black hole thermodynamics via conformal quantum mechanics: II. Thermodynamics of acceleration radiation
A. Azizi, H. E. Camblong, A. Chakraborty +2
The thermodynamics of ``horizon brightened acceleration radiation'' (HBAR), due to a random atomic cloud freely falling into a black hole in a Boulware-like vacuum, is shown to mim…
Quantum optics meets black hole thermodynamics via conformal quantum mechanics: I. Master equation for acceleration radiation
A. Azizi, H. E. Camblong, A. Chakraborty +2
A quantum-optics approach is used to study the nature of the acceleration radiation due to a random atomic cloud falling freely into a generalized Schwarzschild black hole through…
Acceleration radiation of an atom freely falling into a Kerr black hole and near-horizon conformal quantum mechanics
A. Azizi, H. E. Camblong, A. Chakraborty +2
An atom falling freely into a Kerr black hole in a Boulware-like vacuum is shown to emit radiation with a Planck spectrum at the Hawking temperature. For a cloud of falling atoms w…
Near-horizon aspects of acceleration radiation by free fall of an atom into a black hole
H. E. Camblong, A. Chakraborty, C. R. Ordonez
A two-level atom freely falling towards a Schwarzschild black hole was recently shown to detect radiation in the Boulware vacuum in an insightful paper [M. O. Scully et al., Proc.…
Spectral density, Levinson's theorem, and the extra term in the second virial coefficient for 1D delta-function potential
H. E. Camblong, A. Chakraborty, W. S. Daza +3
In contrast with the 3D result, the Beth-Uhlenbeck (BU) formula in 1D contains an extra -1/2 term. The origin of this -1/2 term is explained using a spectral density approach. To b…
Quantum anomaly and thermodynamics of one-dimensional fermions with antisymmetric two-body interactions
Horacio E. Camblong, Abhijit Chakraborty, Wilder S. Daza +3
A system of two-species, one-dimensional fermions, with an attractive two-body interaction of the derivative-delta type, features a scale anomaly. In contrast to the well-known two…