772 citations · 3k across the 31 of their papers we have counts for
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Unified trade-off optimization of quantum harmonic Otto engine and refrigerator
Varinder Singh, Satnam Singh, Obinna Abah +1
We investigate quantum Otto engine and refrigeration cycles of a time-dependent harmonic oscillator operating under the conditions of maximum -function, a trade-off objective fu…
Critical Quantum Metrology with Fully-Connected Models: From Heisenberg to Kibble-Zurek Scaling
Louis Garbe, Obinna Abah, Simone Felicetti +1
Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg…
Quantum Otto engines at relativistic energies
Nathan M. Myers, Obinna Abah, Sebastian Deffner
Relativistic quantum systems exhibit unique features not present at lower energies, such as the existence of both particles and antiparticles, and restrictions placed on the system…
Harnessing non-adiabatic excitations promoted by a quantum critical point
Obinna Abah, Gabriele De Chiara, Mauro Paternostro +1
Crossing a quantum critical point in finite time challenges the adiabatic condition due to the closing of the energy gap, which ultimately results in the formation of excitations.…