Energetics of a single qubit gate
Qubits are physical, a quantum gate thus not only acts on the information carried by the qubit
but also on its energy. What is then the corresponding flow of energy between the qubit and …
but also on its energy. What is then the corresponding flow of energy between the qubit and …
Inherent thermal-noise problem in addressing qubits
S Simbierowicz, M Borrelli, V Monarkha, V Nuutinen… - PRX Quantum, 2024 - APS
Qubit-specific measurement in a superconducting quantum processor requires physical
interconnects that traverse 4 orders of magnitude in temperature from 293 K to 10 mK …
interconnects that traverse 4 orders of magnitude in temperature from 293 K to 10 mK …
Microwave quantum diode
The fragile nature of quantum circuits is a major bottleneck to scalable quantum
applications. Operating at cryogenic temperatures, quantum circuits are highly vulnerable to …
applications. Operating at cryogenic temperatures, quantum circuits are highly vulnerable to …
Numerically “exact” simulations of a quantum Carnot cycle: Analysis using thermodynamic work diagrams
S Koyanagi, Y Tanimura - The Journal of Chemical Physics, 2022 - pubs.aip.org
We investigate the efficiency of a quantum Carnot engine based on open quantum dynamics
theory. The model includes time-dependent external fields for the subsystems controlling the …
theory. The model includes time-dependent external fields for the subsystems controlling the …
Decoherence-free many-body Hamiltonians in nonlinear waveguide quantum electrodynamics
Enhancing interactions in many-body quantum systems, while protecting them from
environmental decoherence, is at the heart of many quantum technologies. Waveguide …
environmental decoherence, is at the heart of many quantum technologies. Waveguide …
All-thermal reversal of heat currents using qutrits
IA Picatoste, R Sánchez - Physical Review A, 2024 - APS
Few-level systems coupled to thermal baths provide useful models for quantum
thermodynamics and to understand the role of heat currents in quantum information settings …
thermodynamics and to understand the role of heat currents in quantum information settings …
Asymmetries of thermal processes in open quantum systems
An intriguing phenomenon in non-equilibrium quantum thermodynamics is the asymmetry of
thermal processes. Relaxation to thermal equilibrium is the most important dissipative …
thermal processes. Relaxation to thermal equilibrium is the most important dissipative …
Resolving Fock states near the Kerr-free point of a superconducting resonator
We have designed a tunable nonlinear resonator terminated by a SNAIL (Superconducting
Nonlinear Asymmetric Inductive eLement). Such a device possesses a Kerr-free point in …
Nonlinear Asymmetric Inductive eLement). Such a device possesses a Kerr-free point in …
Listening for new physics with quantum acoustics
R Linehan, T Trickle, CR Conner, S Ghosh… - arxiv preprint arxiv …, 2024 - arxiv.org
We present a novel application of a qubit-coupled phonon detector to search for new
physics, eg, ultralight dark matter (DM) and high-frequency gravitational waves. The …
physics, eg, ultralight dark matter (DM) and high-frequency gravitational waves. The …
Tuning nonequilibrium heat current and two-photon statistics via composite qubit-resonator interaction
Quantum thermal transport and two-photon statistics serve as two representative
nonequilibrium features in circuit quantum electrodynamics (cQED) systems. Here we …
nonequilibrium features in circuit quantum electrodynamics (cQED) systems. Here we …