Coherent trapping in small quantum networks

Abstract

We consider a three-node fully connected network (Delta network) showing that a coherent population trapping phenomenon occurs, generalizing results for the Lambda network known to support a dark state. Transport in such structures provides signatures of detrapping, which can be triggered by external controls. In the presence of an environment it turns out to be sensitive to its Markovianity. Adiabatic modulation of the system's parameters may yield coherent population transfer, analogous to the stimulated Raman adiabatic passage phenomenon. Robustness of this protocol against non-adiabatic transitions is studied. Coherent nanostructures where these phenomena are relevant for quantum transport and quantum protocols are suggested.

arXiv comment13 pages, 6 figures

References in corpus (25)

• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Atomic physics and quantum optics using superconducting circuits
• Stimulated Raman adiabatic passage in physics, chemistry and beyond
• 1/f noise: implications for solid-state quantum information
• Optical selection rules and phase-dependent adiabatic state control in a superconducting quantum circuit
• Continuous-Time Quantum Walks: Models for Coherent Transport on Complex Networks
• Quantum Routing of Single Photons with Cyclic Three-Level System
• Stimulated Raman adiabatic passage in a three-level superconducting circuit
• Interdisciplinary and physics challenges of Network Theory
• Three-level superadiabatic quantum driving
• Design of a Lambda system for population transfer in superconducting nanocircuits
• Spatial adiabatic passage: a review of recent progress
• Coherent population transfer between weakly-coupled states in a ladder-type superconducting qutrit
• Dephasing-assisted transport in linear triple quantum dots
• Coherent manipulation of noise-protected superconducting artificial atoms in the Lambda scheme
• Population transfer in a Lambda system induced by detunings
• Advanced control with a Cooper-pair box: stimulated Raman adiabatic passage and Fock-state generation in a nanomechanical resonator
• Optimal tuning of solid-state quantum gates: A universal two-qubit gate
• Advances in quantum control of three-level superconducting circuit architectures
• Quantum Control in Qutrit Systems using Hybrid Rabi-STIRAP Pulses
• Decoherence times of universal two-qubit gates in the presence of broad-band noise
• Superconducting qubit manipulated by fast pulses: experimental observation of distinct decoherence regimes
• Ultrastrong coupling probed by Coherent Population Transfer
• Non-equilibrium thermodynamics of continuously measured quantum systems: a circuit-QED implementation
• Photon pair production by STIRAP in ultrastrongly coupled matter-radiation systems

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• Channel capacity of small modular quantum networks in the ultrastrongly coupled regime