151 citations · 377 across the 25 of their papers we have counts for
25 papers
Thermalization and dephasing in an isolated system of coupled qubits
Jukka P. Pekola, Bayan Karimi
A system evolving unitarily does not dephase or thermalize by definition. Yet, if one considers a part of a unitary system, situation is different. Here we analyze an isolated set…
Heat transport in driven quantum systems: Comparison between the Floquet-Redfield equation and the master equation in the instantaneous eigenbasis
Luca Magazzù, Christoforus Dimas Satrya, Aleksandr S. Strelnikov +2
We provide a comprehensive study of heat transport in periodically driven quantum systems using a master equation approach in the Floquet basis. Starting from the exact, formal exp…
Heat measurement of quantum interference
Christoforus Dimas Satrya, Aleksandr S. Strelnikov, Luca Magazzù +5
Coherence is a key property of quantum systems, and it plays a central role in the operation and performance of quantum heat engines and refrigerators. Despite its importance for t…
Probing strongly driven and strongly coupled superconducting qubit-resonator system
Oleh V. Ivakhnenko, Christoforus Dimas Satrya, Yu-Cheng Chang +5
We investigated a strongly driven qubit strongly connected to a quantum resonator. The measured system was a superconducting flux qubit coupled to a coplanar-waveguide resonator wh…
A blueprint for experiments exploring the Poincaré quantum recurrence theorem
Bayan Karimi, Xuntao Wu, Andrew N. Cleland +1
The quantum form of the Poincaré recurrence theorem stipulates that a system with a time-independent Hamiltonian and discrete energy levels returns arbitrarily close to its initial…
Thermal rectification in a qubit-resonator system
Luca Magazzù, Elisabetta Paladino, Jukka P. Pekola +1
A qubit-oscillator junction connecting as a series two bosonic heat baths at different temperatures can display heat valve and diode effects. In particular, the rectification can c…
Quantum-Ready Microwave Detection with Scalable Graphene Bolometers in the Strong Localization Regime
Yu-Cheng Chang, Federico Chianese, Naveen Shetty +8
Exploiting quantum interference of charge carriers, epitaxial graphene grown on silicon carbide emerges as a game-changing platform for ultra-sensitive bolometric sensing, featurin…
Roadmap on Quantum Thermodynamics
Steve Campbell, Irene D'Amico, Mario A. Ciampini +66
The last two decades has seen quantum thermodynamics become a well established field of research in its own right. In that time, it has demonstrated a remarkably broad applicabilit…
Strong-coupling quantum thermodynamics using a superconducting flux qubit
Rishabh Upadhyay, Bayan Karimi, Diego Subero +4
Thermodynamics in quantum circuits aims to find improved functionalities of thermal machines, highlight fundamental phenomena peculiar to quantum nature in thermodynamics, and poin…
Thermal spectrometer for superconducting circuits
Christoforus Dimas Satrya, Yu-Cheng Chang, Aleksandr S. Strelnikov +5
Superconducting circuits provide a versatile and controllable platform for studies of fundamental quantum phenomena as well as for quantum technology applications. A conventional t…
Thermometry Based on a Superconducting Qubit
Dmitrii S. Lvov, Sergei A. Lemziakov, Elias Ankerhold +2
We report temperature measurements using a transmon qubit by detecting the population of its first three energy levels, after applying a sequence of -pulses and performing proje…
Thermalization via three-wave mixing
Jukka P. Pekola, Bayan Karimi
We discuss thermalization in a multimode quantum cavity under unitary evolution. According to general principles, an isolated system with quadratic couplings does not exhibit therm…
Bolometric detection of Josephson radiation
Bayan Karimi, Gorm Ole Steffensen, Andrew P. Higginbotham +3
A Josephson junction (JJ) has been under intensive study ever since 1960's. Yet even in the present era of building quantum information processing devices based on many JJs, open q…
Dicke superradiant enhancement of the heat current in circuit QED
Gian Marcello Andolina, Paolo Andrea Erdman, Frank Noé +2
Collective effects, such as Dicke superradiant emission, can enhance the performance of a quantum device. Here, we study the heat current flowing between a cold and a hot bath thro…
Bolometric detection of Josephson inductance in a highly resistive environment
Diego Subero, Olivier Maillet, Dmitry S. Golubev +8
The Josephson junction is a building block of quantum circuits. Its behavior, well understood when treated as an isolated entity, is strongly affected by coupling to an electromagn…
Calorimetry of a Quantum Phase Slip
E. Gümüş, D. Majidi, D. Nikolić +8
In a Josephson junction, which is the central element in superconducting quantum technology, irreversibility arises from abrupt slips of the gauge-invariant quantum phase differenc…
Hybrid single-electron turnstiles with thick superconducting electrodes for improved quasiparticle relaxation
J. T. Peltonen, A. Moisio, V. F. Maisi +3
We demonstrate shadow evaporation-based fabrication of high-quality ultrasmall normal metal -- insulator -- superconductor tunnel junctions where the thickness of the superconducti…
Otto refrigerator based on a superconducting qubit: classical and quantum performance
B. Karimi, J. P. Pekola
We analyse a quantum Otto refrigerator based on a superconducting qubit coupled to two LC-resonators each including a resistor acting as a reservoir. We find various operation regi…
Thermal conductance of Nb thin films at sub-kelvin temperatures
A. V. Feshchenko, O. -P. Saira, J. T. Peltonen +1
We determine the thermal conductance of thin niobium (Nb) wires on a silica substrate in the temperature range of 0.1 - 0.6 K using electron thermometry based on normal metal-insul…
High-performance electronic cooling with superconducting tunnel junctions
H Courtois, Hung Q. Nguyen, Clemens Winkelmann +1
When biased at a voltage just below a superconductor's energy gap, a tunnel junction between this superconductor and a normal metal cools the latter. While the study of such device…
On-chip error counting for hybrid metallic single-electron turnstiles
J. T. Peltonen, V. F. Maisi, S. Singh +2
We perform in-situ detection of individual electrons pumped through a single-electron turnstile based on ultrasmall normal metal - insulator - superconductor tunnel junctions. In o…
Low-temperature characterization of Nb-Cu-Nb weak links with Ar ion-cleaned interfaces
R. N. Jabdaraghi, J. T. Peltonen, O. -P. Saira +1
We characterize niobium-based lateral Superconductor (S) - Normal metal (N) - Superconductor weak links through low-temperature switching current measurements and tunnel spectrosco…
Experimental realization of a Coulomb blockade refrigerator
A. V. Feshchenko, J. V. Koski, J. P. Pekola
We present an experimental realization of a Coulomb blockade refrigerator (CBR) based on a single - electron transistor (SET). In the present structure, the SET island is interrupt…
Laterally proximized aluminum tunnel junctions
J. V. Koski, J. T. Peltonen, M. Meschke +1
This letter presents experiments on junctions fabricated by a new technique that enables the use of high quality aluminum oxide tunnel barriers with normal metal electrodes at low…