# Engineering the speedup of quantum tunneling in Josephson systems via dissipation

@article{Maile2022EngineeringTS, title={Engineering the speedup of quantum tunneling in Josephson systems via dissipation}, author={Dominik Maile and Joachim Ankerhold and Sabine Andergassen and Wolfgang Belzig and Gianluca Rastelli}, journal={Physical Review B}, year={2022} }

We theoretically investigate the escape rate occurring via quantum tunneling in a system aﬀected by tailored dissipation. Speciﬁcally, we study the environmental assisted quantum tunneling of the superconducting phase in a current-biased Josephson junction. We consider Ohmic resistors inducing dissipation both in the phase and in the charge of the quantum circuit. We ﬁnd that the charge dissipation leads to an enhancement of the quantum escape rate. This eﬀect appears already in the low Ohmic…

## Figures from this paper

## References

SHOWING 1-10 OF 40 REFERENCES

Exponential speedup of incoherent tunneling via dissipation

- PhysicsPhysical Review Research
- 2021

D. Maile ,1,2 S. Andergassen ,2 W. Belzig,1 and G. Rastelli 1,3,4 1Fachbereich Physik, Universität Konstanz, D-78457 Konstanz, Germany 2Institut für Theoretische Physik and Center for Quantum…

Stabilization of Multimode Schrödinger Cat States Via Normal-Mode Dissipation Engineering

- PhysicsPRX Quantum
- 2022

Petr Zapletal,1, 2 Andreas Nunnenkamp,3, 4, 2 and Matteo Brunelli2, 5 Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Physics, 91058 Erlangen, Germany Cavendish Laboratory,…

Quantum decay in a dissipative system

- Physics
- 1984

In view of recent interest in the problem of macroscopic quantum tunneling in systems involving the Josephson effect, we present an accurate numerical calculation of the tunneling rate of a system…

Confining the state of light to a quantum manifold by engineered two-photon loss

- PhysicsScience
- 2015

It is shown that engineering the interaction between a quantum system and its environment can induce stability for the delicate quantum states, a process that could simplify quantum information processing.

Rabi oscillations in a large Josephson-junction qubit.

- PhysicsPhysical review letters
- 2002

A circuit based on a large-area current-biased Josephson junction whose two lowest energy quantum levels are used to implement a solid-state qubit is designed and operated and is the basis of a scalable quantum computer.

Effects of a dissipative coupling to the momentum of a particle in a double well potential

- PhysicsPhysical Review Research
- 2020

Double well potentials offer the possibility of coherent state preparation and therefore constitute important building blocks in the analysis of quantum information and quantum engineering devices.…

Quantum Dissipative Systems

- Physics
- 1993

Fundamentals Survey of the Various Approaches Path Integral Description of Open Quantum Systems Imaginary-Time and Real-Time Approaches Influence Functional Method Phenomenological and Microscopic…

Quantum phase transition with dissipative frustration

- Physics
- 2018

We study the quantum phase transition of the one-dimensional phase model in the presence of dissipative frustration, provided by an interaction of the system with the environment through two…

Dynamically protected cat-qubits: a new paradigm for universal quantum computation

- Physics
- 2014

We present a new hardware-efficient paradigm for universal quantum computation which is based on encoding, protecting and manipulating quantum information in a quantum harmonic oscillator. This…

Dissipation-induced enhancement of quantum fluctuations

- Physics
- 2016

We study a quantum harmonic oscillator linearly coupled through the position operator q ˆ to a first bath and through the momentum operator p ˆ to a second bath yielding an Ohmic–Drude dissipation.…