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quant-ph2025
Initial demonstration of a quantum heat engine based on dissipation-engineered superconducting circuits
Tuomas Uusnäkki, Timm Mörstedt, Wallace Teixeira +2
Quantum heat engines require precise control over thermal reservoirs and the energies of the quantum working medium. Although superconducting circuits enable accurate engineering o…
quant-ph2024
Rapid on-demand generation of thermal states in superconducting quantum circuits
Timm Fabian Mörstedt, Wallace Santos Teixeira, Arto Viitanen +13
We experimentally demonstrate the fast generation of thermal states of a transmon using a single-junction quantum-circuit refrigerator (QCR) as an in-situ-tunable environment. Thro…
quant-ph2024
Many-excitation removal of a transmon qubit using a single-junction quantum-circuit refrigerator and a two-tone microwave drive
Wallace Teixeira, Timm Mörstedt, Arto Viitanen +7
Achieving fast and precise initialization of qubits is a critical requirement for the successful operation of quantum computers. The combination of engineered environments with all…