4 papers
Collective charge measurement in quantum dot chains: controlling barrier occupation and tunneling current
Alok Nath Singh, Rafael Sánchez, Andrew N. Jordan
We investigate nonequilibrium transport in a triple-quantum-dot (TQD) system, where the central dot acts as a discrete tunnel barrier, subject to continuous monitoring by a quantum…
Making the Virtual Real: Measurement-Powered Tunneling Engines
Rafael Sánchez, Alok Nath Singh, Andrew N. Jordan +1
Quantum tunneling allows electrons to be transferred between two regions separated by an energetically forbidden barrier. Performing a position measurement that finds a particle in…
Capturing an Electron in the Virtual State
Alok Nath Singh, Bibek Bhandari, Rafael Sánchez +1
We address a foundational question in quantum mechanics: Can a particle be directly found in a classically forbidden virtual state? We instantiate this conceptual question by inves…
Giant Thermoelectric Response of Fluxons in Superconductors
Alok Nath Singh, Bibek Bhandari, Alessandro Braggio +2
Thermoelectric devices that operate on quantum principles have been under extensive investigation in the past decades. These devices are at the fundamental limits of miniaturized h…