Colloquium: Quantum heat transport in condensed matter systems
JP Pekola, B Karimi - Reviews of Modern Physics, 2021 - APS
In this Colloquium recent advances in the field of quantum heat transport are reviewed. This
topic has been investigated theoretically for several decades, but only during the past 20 …
topic has been investigated theoretically for several decades, but only during the past 20 …
Active initialization experiment of a superconducting qubit using a quantum circuit refrigerator
The initialization of superconducting qubits is one of the essential techniques for the
realization of quantum computation. In previous research, initialization above 99% fidelity …
realization of quantum computation. In previous research, initialization above 99% fidelity …
Recent Developments in Quantum‐Circuit Refrigeration
TF Mörstedt, A Viitanen, V Vadimov… - Annalen der …, 2022 - Wiley Online Library
The recent progress in direct active cooling of the quantum‐electric degrees of freedom in
engineered circuits, or quantum‐circuit refrigeration is reviewed. In 2017, the discovery of a …
engineered circuits, or quantum‐circuit refrigeration is reviewed. In 2017, the discovery of a …
[HTML][HTML] Initial experimental results on a superconducting-qubit reset based on photon-assisted quasiparticle tunneling
We present here our recent results on qubit reset scheme based on a quantum-circuit
refrigerator (QCR). In particular, we use the photon-assisted quasiparticle tunneling through …
refrigerator (QCR). In particular, we use the photon-assisted quasiparticle tunneling through …
Quantum coherence, many-body correlations, and non-thermal effects for autonomous thermal machines
One of the principal objectives of quantum thermodynamics is to explore quantum effects
and their potential beneficial role in thermodynamic tasks like work extraction or …
and their potential beneficial role in thermodynamic tasks like work extraction or …
Continuous microwave photon counting by semiconductor-superconductor hybrids
We present a continuous microwave photon counter based on superconducting cavity-
coupled semiconductor quantum dots. The device utilizes photon-assisted tunneling in a …
coupled semiconductor quantum dots. The device utilizes photon-assisted tunneling in a …
Quantum-circuit refrigeration of a superconducting microwave resonator well below a single quantum
A Viitanen, T Mörstedt, WS Teixeira, M Tiiri… - Physical Review …, 2024 - APS
We experimentally demonstrate a recently proposed single-junction quantum-circuit
refrigerator (QCR) as an in situ tunable low-temperature environment for a superconducting …
refrigerator (QCR) as an in situ tunable low-temperature environment for a superconducting …
Co-Design quantum simulation of nanoscale NMR
Quantum computers have the potential to efficiently simulate the dynamics of nanoscale
NMR systems. In this work, we demonstrate that a noisy intermediate-scale quantum …
NMR systems. In this work, we demonstrate that a noisy intermediate-scale quantum …
[HTML][HTML] Fast control of dissipation in a superconducting resonator
We report on fast tunability of an electromagnetic environment coupled to a superconducting
coplanar waveguide resonator. Namely, we utilize a recently developed quantum-circuit …
coplanar waveguide resonator. Namely, we utilize a recently developed quantum-circuit …
Quantum bath engineering of a high impedance microwave mode through quasiparticle tunneling
In microwave quantum optics, dissipation usually corresponds to quantum jumps, where
photons are lost one by one. Here we demonstrate a new approach to dissipation …
photons are lost one by one. Here we demonstrate a new approach to dissipation …