Nonequilibrium Landau-Zener-Stuckelberg spectroscopy in a double quantum dot

Abstract

We study theoretically nonequilibrium Landau-Zener-Stückelberg (LZS) dynamics in a driven double quantum dot (DQD) including dephasing and, importantly, energy relaxation due to environmental fluctuations. We derive effective nonequilibrium Bloch equations. These allow us to identify clear signatures for LZS oscilations observed but not recognized as such in experiments [Petersson et al., Phys. Rev. Lett. 105, 246804, 2010] and to identify the full environmental fluctuation spectra acting on a DQD given experimental data as in [Petersson et al., Phys. Rev. Lett. 105, 246804, 2010]. Herein we find that super-Ohmic fluctuations, typically due to phonons, are the main relaxation channel for a detuned DQD whereas Ohmic fluctuations dominate at zero detuning.

5 pages, 4 figures

References in corpus (14)

• Electrically driven single electron spin resonance in a slanting Zeeman field
• Quantum Coherence in a One-Electron Semiconductor Charge Qubit
• Coherent control of three-spin states in a triple quantum dot
• Decoherence in qubits due to low-frequency noise
• Universal pulse sequence to minimize spin dephasing in the central spin decoherence problem
• Quantum Phase Tomography of a Strongly Driven Qubit
• Quantum interference and phonon-mediated back-action in lateral quantum dot circuits
• Nonadiabatic quantum control of a semiconductor charge qubit
• Telegraph Noise in Coupled Quantum Dot Circuits Induced by a Quantum Point Contact
• Statistical electron excitation in a double quantum dot induced by two independent quantum point contacts
• Tunneling Spectroscopy of Two-level Systems Inside Josephson Junction
• Ohmic and step noise from a single trapping center hybridized with a Fermi sea
• Competition between relaxation and external driving in the dissipative Landau-Zener problem
• Radio frequency pulsed-gate charge spectroscopy on coupled quantum dots

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• Solvable 4-state Landau-Zener model of two interacting qubits with path interference
• Quasi-adiabatic path integral approach for quantum systems under the influence of multiple non-commuting fluctuations
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• Ultrafast Manipulation of a Double Quantum Dot via Lyapunov Control Method
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• The visibility study of S-T${}_{+}$ Landau-Zener-Stückelberg oscillations without applied initialization
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• Revealing the system-bath coupling via Landau-Zener-Stückelberg interferometry in superconducting qubits
• Dynamics of dissipative Landau-Zener transitions in an anisotropic three-level system
• Controllable single spin evolution at sub-harmonics of electric dipole spin resonance enhanced by four-level Landau-Zener-St{ü}ckelberg-Majorana interference
• Spin flip locking by the tunneling and relaxation in a driven double quantum dot with spin-orbit coupling
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• Topological phase dynamics described by overtone-synthesized classical and quantum Adler equations