Realization of invariant-based shortcuts to population inversion with a superconducting circuit

2021 ◽  
Vol 118 (22) ◽  
pp. 224003
Author(s):  
Zhikun Han ◽  
Yuqian Dong ◽  
Xiaopei Yang ◽  
Shuqing Song ◽  
Luqing Qiu ◽  
...  
Keyword(s):  
Population Inversion ◽  
Superconducting Circuit

scholarly journals Electric field control of radiative heat transfer in a superconducting circuit

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Olivier Maillet ◽  
Diego Subero ◽  
Joonas T. Peltonen ◽  
Dmitry S. Golubev ◽  
Jukka P. Pekola
Keyword(s):  
Heat Transfer ◽  
Electric Field ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Superconducting Circuit ◽  
Field Control

scholarly journals A phononic interface between a superconducting quantum processor and quantum networked spin memories

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Tomáš Neuman ◽  
Matt Eichenfield ◽  
Matthew E. Trusheim ◽  
Lisa Hackett ◽  
Prineha Narang ◽  
...  
Keyword(s):  
Quantum State ◽  
Piezoelectric Transducers ◽  
High Fidelity ◽  
Hybrid Architecture ◽  
Quantum Networks ◽  
Superconducting Circuit ◽  
Artificial Atom ◽  
Experimental Parameters ◽  
Quantum Processor ◽  
State Spin

AbstractWe introduce a method for high-fidelity quantum state transduction between a superconducting microwave qubit and the ground state spin system of a solid-state artificial atom, mediated via an acoustic bus connected by piezoelectric transducers. Applied to present-day experimental parameters for superconducting circuit qubits and diamond silicon-vacancy centers in an optimized phononic cavity, we estimate quantum state transduction with fidelity exceeding 99% at a MHz-scale bandwidth. By combining the complementary strengths of superconducting circuit quantum computing and artificial atoms, the hybrid architecture provides high-fidelity qubit gates with long-lived quantum memory, high-fidelity measurement, large qubit number, reconfigurable qubit connectivity, and high-fidelity state and gate teleportation through optical quantum networks.

Atom‐Mediated Phonon Blockade and Controlled‐Z Gate in Superconducting Circuit System

2021 ◽  
pp. 2100039
Author(s):  
Chengsong Zhao ◽  
Rui Peng ◽  
Zhen Yang ◽  
Shilei Chao ◽  
Chong Li ◽  
...  
Keyword(s):  
Superconducting Circuit

Supradegeneracy and the Second Law of Thermodynamics

2020 ◽  
Vol 45 (2) ◽  
pp. 121-132
Author(s):  
Daniel P. Sheehan
Keyword(s):  
Steady State ◽  
Statistical Mechanics ◽  
Population Inversion ◽  
Laboratory Experiments ◽  
Second Law Of Thermodynamics ◽  
Second Law ◽  
Boltzmann Factor ◽  
Energy Currents ◽  
Non Equilibrium

AbstractCanonical statistical mechanics hinges on two quantities, i. e., state degeneracy and the Boltzmann factor, the latter of which usually dominates thermodynamic behaviors. A recently identified phenomenon (supradegeneracy) reverses this order of dominance and predicts effects for equilibrium that are normally associated with non-equilibrium, including population inversion and steady-state particle and energy currents. This study examines two thermodynamic paradoxes that arise from supradegeneracy and proposes laboratory experiments by which they might be resolved.

scholarly journals Photon-Instanton Collider Implemented by a Superconducting Circuit

2021 ◽  
Vol 126 (13) ◽  
Author(s):  
Amir Burshtein ◽  
Roman Kuzmin ◽  
Vladimir E. Manucharyan ◽  
Moshe Goldstein
Keyword(s):  
Superconducting Circuit

scholarly journals Population inversion in hyperfine states of Rb with a single nanosecond chirped pulse in the framework of a four-level system

2014 ◽  
Vol 89 (4) ◽  
Author(s):  
G. Liu ◽  
V. Zakharov ◽  
T. Collins ◽  
P. Gould ◽  
S. A. Malinovskaya
Keyword(s):  
Population Inversion ◽  
Level System ◽  
Chirped Pulse
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