Transport Spectroscopy of a Spin-Coherent Dot-Cavity System

Abstract

Quantum engineering requires controllable artificial systems with quantum coherence exceeding the device size and operation time. This can be achieved with geometrically confined low-dimensional electronic structures embedded within ultraclean materials, with prominent examples being artificial atoms (quantum dots) and quantum corrals (electronic cavities). Combining the two structures, we implement a mesoscopic coupled dot-cavity system in a high-mobility two-dimensional electron gas, and obtain an extended spin-singlet state in the regime of strong dot-cavity coupling. Engineering such extended quantum states presents a viable route for nonlocal spin coupling that is applicable for quantum information processing.

References in corpus (8)

• Observation of the two-channel Kondo effect
• Quantum phase transition in a single-molecule quantum dot
• Experimental signature of phonon-mediated spin relaxation
• Zero-field Kondo splitting and quantum-critical transition in double quantum dots
• Experimental probe of topological orders and edge excitations in the second Landau level
• Tunable Spin Qubit Coupling Mediated by a Multi-Electron Quantum Dot
• Two-Qubit Couplings of Singlet-Triplet Qubits Mediated by One Quantum State
• Spectroscopy of Equilibrium and Non-Equilibrium Charge Transfer in Semiconductor Quantum Structures

Cited by in corpus (28)

• High-power collective charging of a solid-state quantum battery
• Charger-mediated energy transfer in exactly-solvable models for quantum batteries
• Green's function methods for single molecule junctions
• Scanning gate experiments: from strongly to weakly invasive probes
• Open quantum systems beyond Fermi's golden rule: Diagrammatic expansion of the steady-state time-convolutionless master equation
• Electron phase shift at the zero-bias anomaly of quantum point contacts
• Auger-spectroscopy in quantum Hall edge channels: a possible resolution to the missing energy problem
• Long-range spin-coherence in a strongly-coupled all electronic dot-cavity system
• Entanglement based observables for quantum impurities
• Cavity-mediated coherent coupling between distant quantum dots
• Conductance and Kondo Interference beyond Proportional Coupling
• Fano Resonance in a cavity-reflector hybrid system
• Interference Effects in a Tunable Quantum Point Contact Integrated with an Electronic Cavity
• Signatures of folded branches in the scanning gate microscopy of ballistic electronic cavities
• Tunneling into a finite Luttinger liquid coupled to noisy capacitive leads
• Quantum-correlated photons generated by nonlocal electron transport
• Electron backscattering in a cavity: ballistic and coherent effects
• Entangled Photon-Pair Emission in Waveguide Circuit QED from a Cooper Pair Splitter
• Coherent exchange-coupled nonlocal Kondo impurities
• Incipient singlet-triplet states in a hybrid mesoscopic system
• Magnetoresistance in an electronic cavity coupled to one-dimensional systems
• Imaging signatures of the local density of states in an electronic cavity
• Transport in Single Quantum Dots: A Review from Linear Response to Nonlinear Regimes
• Local signatures of electron-electron scattering in an electronic cavity
• Transport spectroscopy of singlet-triplet quantum dot states coupled to electronic cavities
• Unraveling screening mechanisms in Kondo impurities using an NRG-MPS-based method
• On-chip quantum sensing of Kondo spins in a high-mobility quasi-one-dimensional nanoconstriction
• Dispersive detection of single microwave photons with quantum dots