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- Homi Bhabha National InstituteIN282 papers
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91 papers · 1 filter
Noisy quantum input loophole in measurement-device-independent entanglement witnesses
Kornikar Sen, Chirag Srivastava, Shiladitya Mal +2
Entanglement witnesses form an effective method to locally detect entanglement in the laboratory without having the prior knowledge of the full density matrix. However, separable s…
A relatively light, highly bino-like dark matter in the -symmetric NMSSM and recent LHC searches
Waleed Abdallah, AseshKrishna Datta, Subhojit Roy
A highly bino-like Dark Matter (DM), which is the Lightest Supersymmetric Particle (LSP), could be motivated by the stringent upper bounds on the DM direct detection rates. This is…
Robustness of Higher Dimensional Nonlocality against dual noise and sequential measurements
Saptarshi Roy, Asmita Kumari, Shiladitya Mal +1
Robustness in the violation of Collins-Linden-Gisin-Masser-Popescu (CGLMP) inequality is investigated from the dual perspective of noise in measurements as well as in states. To qu…
D-instantons, String Field Theory and Two Dimensional String Theory
Ashoke Sen
In arXiv:1907.07688 Balthazar, Rodriguez and Yin (BRY) computed the one instanton contribution to the two point scattering amplitude in two dimensional string theory to first suble…
One-loop integrand from generalised scattering equations
Md. Abhishek, Subramanya Hegde, Arnab Priya Saha
Generalised bi-adjoint scalar amplitudes, obtained from integrations over moduli space of punctured , are novel extensions of the CHY formalism. These amplitudes…
Three qubits in less than three baths: Beyond two-body system-bath interactions in quantum refrigerators
Ahana Ghoshal, Sreetama Das, Amit Kumar Pal +2
We show that quantum absorption refrigerators, which have traditionally been studied as of three qubits, each of which is connected to a thermal reservoir, can also be constructed…