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Home » Archives for Chaitanya Gupta
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Chaitanya Gupta

Chaitanya Gupta is a student contributor to Physics World. They are currently pursuing their PhD at the University of Bristol, UK. Their research interests broadly lie in quantum foundations and information. Currently, they are researching how they can use quantum information tools to come up with discrete spacetime models of particle physics. They hold a master’s degree from the University of Cambridge, UK and a bachelor’s from Nanyang Technological University, Singapore. They are originally from the Himalayan town of Jammu, Jammu and Kashmir. Apart from studying quantum mechanics, they enjoy reading fiction, cooking and working out. 

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Quantum principle allows heat to flow from cold to hot

Heat flows from hot objects to cold objects – or does it? Although unidirectional heat flow is a natural consequence of the second law of thermodynamics, which states that entropy must either increase or stay the same, an international team has experimentally demonstrated that a quantum mechanism can reverse this flow of heat while remaining […]

Artistic illustration showing cold reservoirs (in blue) flowing towards a hot one (in red) while also leaking heat to the environment. A diagram below the illustration shows the different pathways followed in the experiment Read article: Quantum principle allows heat to flow from cold to hot

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