Browsing School of Physics by Author "Purkayastha, Archak"
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Quasiperiodic quantum heat engines with a mobility edge
Goold, John; Purkayastha, Archak; Mitchison, Mark (2020)Steady-state thermoelectric machines convert heat into work by driving a thermally generated charge current against a voltage gradient. In this work, we propose a new class of steady-state heat engines operating in the ... -
Tensor-network method to simulate strongly interacting quantum thermal machines
Goold, John; Purkayastha, Archak; Mitchison, Mark (2020)We present a methodology to simulate the quantum thermodynamics of thermal machines which are built from an interacting working medium in contact with fermionic reservoirs at a fixed temperature and chemical potential. Our ... -
Tunable phonon-induced steady state coherence in a double-quantum-dot charge qubit
Goold, John; Purkayastha, Archak; Mitchison, Mark (2020)Charge qubits can be created and manipulated in solid-state double-quantum-dot (DQD) platforms. Typically, these systems are strongly affected by quantum noise stemming from coupling to substrate phonons. This is usually ...