Exponential speedup of incoherent tunneling via dissipation

@article{Maile2021ExponentialSO,
  title={Exponential speedup of incoherent tunneling via dissipation},
  author={Dominik Maile and Sabine Andergassen and Wolfgang Belzig and Gianluca Rastelli},
  journal={Physical Review Research},
  year={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 Science, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany 3Zukunftskolleg, Universität Konstanz, D-78457 Konstanz, Germany 4INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy 

Figures from this paper

References

SHOWING 1-10 OF 54 REFERENCES
Nonequilibrium dynamics of a system with quantum frustration
H.K. acknowledges financial support from the German Research council (DFG) with Grant No. Ko 3538/1-2 and from CSIC within the JAE-Doc program cofunded by the FSE (Fondo Social Europeo). A.H.Expand
Understanding Quantum Tunneling through Quantum Monte Carlo Simulations.
TLDR
Performing quantum Monte Carlo (QMC) simulations, it is found that the QMC tunneling rate displays the same scaling with system size, as the rate of incoherent tunneling, and the scaling in both cases is O(Δ^{2}). Expand
Effects of a dissipative coupling to the momentum of a particle in a double well potential
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.Expand
Thermal enhancement of the quantum decay rate in a dissipative system
The quantum decay of a metastable system which interacts with an environment at temperatureT is considered. A general formula for the decay rate at finite temperatures is obtained by a method whichExpand
Dissipation-induced enhancement of quantum fluctuations
We study a quantum harmonic oscillator linearly coupled through the position operator to a first bath and through the momentum operator to a second bath yielding an Ohmic–Drude dissipation. WeExpand
Environment-Assisted Quantum Transport in a 10-qubit Network.
TLDR
The approach represents a controlled and scalable way to investigate quantum transport in many-body networks under static disorder and dynamic noise and shows that dephasing characterized by non-Markovian noise can maintain coherences longer than white noise dephase, with a strong influence of the spectral structure on the transport efficiency. Expand
Optimization by quantum annealing: Lessons from simple cases
We investigate the basic behavior and performance of simulated quantum annealing (QA) in comparison with classical annealing (CA). Three simple one-dimensional case study systems are considered:Expand
CORRIGENDUM: Optimization using quantum mechanics: quantum annealing through adiabatic evolution
We review here some recent work in the field of quantum annealing, alias adiabatic quantum computation. The idea of quantum annealing is to perform optimization by a quantum adiabatic evolution whichExpand
Decay of a metastable state: A variational approach.
TLDR
The exponential suppression of the quantum tunneling rate due to the coupling with a thermal reservoir is evaluated by a variational method, in which an approximate saddle point of the effective action is found. Expand
Fate of the false vacuum. II. First quantum corrections
It is possible for a classical field theory to have two homogeneous stable equilibrium states with different energy densities. In the quantum version of the theory, the state of higher energy densityExpand
...
1
2
3
4
5
...