Manual and Electrical Energies in the Visualisation of “Electrical Calcutta”, c. 1890-1925

Through examinations of domestic servants in electrical advertisements and writings this article looks at the imaginations and realities of visions of an “Electrical Calcutta” at the turn of the twentieth century. It argues that the diverse conceptions of an “Electrical Calcutta” were intimately linked to not just the technological and mechanical benefits of electrical technologies, but also the centrality of servants to societal notions of morality, class and social hierarchy, and cultures and discourses of human bodies, labour and energy within the domestic sphere.publishedVersio

Manual and Electrical Energies in the Visualisation of “Electrical Calcutta”, c. 1890-1925

Through examinations of domestic servants in electrical advertisements and writings this article looks at the imaginations and realities of visions of an “Electrical Calcutta” at the turn of the twentieth century. It argues that the diverse conceptions of an “Electrical Calcutta” were intimately linked to not just the technological and mechanical benefits of electrical technologies, but also the centrality of servants to societal notions of morality, class and social hierarchy, and cultures and discourses of human bodies, labour and energy within the domestic sphere.publishedVersio

Testing non-standard neutrino matter interactions in atmospheric neutrino propagation

We study the effects of non-standard interactions on the oscillation pattern of atmospheric neutrinos. We use neutrino oscillograms as our main tool to infer the role of non-standard interactions (NSI) parameters at the probability level in the energy range, $E \in [1,20]$ GeV and zenith angle range, $\cos \theta \in [-1,0]$. We compute the event rates for atmospheric neutrino events in presence of NSI parameters in the energy range $E \in [1,10]$ GeV for two different detector configurations - a magnetized iron calorimeter and an unmagnetized liquid Argon time projection chamber which have different sensitivities to NSI parameters due to their complementary characteristics. As an application, we discuss how NSI parameter, $\epsilon_{\mu\tau}$ impacts the determination of the correct octant of $\theta_{23}$.Comment: v2: matches published version in Phys. Rev.

Shifting Narratives of Electricity and Energy in Periods of Transition

This special issue aims at providing nuanced and multi-layered understandings of historical choices regarding, and perceptions of, electric supply and electrical technologies, by taking into consideration diverse groups, actors, agencies, and communities in distinct historical and regional settings. It also aims at rethinking energy systems, practices, and transitions through questions of gender, religion, race, design and architecture, material culture, colonialism, nationalism(s), and varied interpretations of tradition and modernity. It insists on reorienting our gaze from centring on electricity to examining electricity within existing energy regimes and sources, to historicise and problematise the place of electricity, electric supply and use within complex conceptions of energy transitions, thereby challenging linear narratives of progress and modernisation.publishedVersio

Probing mass orderings in presence of a very light sterile neutrino in a liquid argon detector

Results from experiments like LSND and MiniBooNE hint towards the possible presence of an extra eV scale sterile neutrino. The addition of such a neutrino will significantly impact the standard three flavour neutrino oscillations. In particular, it can give rise to additional degeneracies due to additional sterile parameters. For an eV scale sterile neutrino, the cosmological constraints dictate that the sterile state is heavier than the three active states. However, for lower masses of sterile neutrinos, it can be lighter than one and/or more of the three states. In such cases, the mass ordering of the sterile neutrinos also becomes unknown along with the mass ordering of the active states. In this paper, we explore the mass ordering sensitivity in the presence of a sterile neutrino assuming the mass squared difference $|\Delta_{41}|$ to be in the range $10^{-4} - 1$ eV$^2$. We study (i) how the ordering of the active states, i.e. the determination of the sign of $\Delta_{31}$ gets affected by the presence of a sterile neutrino in the above mass range, (ii) the possible determination of the sign of $\Delta_{41}$ for $\Delta_{41}$ in the range $10^{-4} - 0.1$ eV$^2$. This analysis is done in the context of a liquid argon detector using both beam neutrinos traveling a distance of 1300 km and atmospheric neutrinos which propagates through a distance ranging from 10 - 10000 km allowing resonant matter effects. Apart from presenting separate results from these sources, we also do a combined study and probe the synergy between these two in giving an enhanced sensitivity.Comment: 14 pages, 19 figure