Double Nuclear Spin Relaxation in Hybrid Quantum Hall Systems
arXiv:2101.04433 · doi:10.1103/PhysRevB.104.L121402
Abstract
Recent advances in quantum engineering have given us the ability to design hybrid systems with novel properties normally not present in the regime they operate in. The coupling of spin ensembles and magnons to microwave resonators has for instance lead to a much richer understanding of collective effects in these systems and their potential quantum applications. We can also hybridize electron and nuclear spin ensembles together in the solid-state regime to investigate collective effects normally only observed in the atomic, molecular and optical world. Here we explore in the solid state regime the dynamics of a double domain nuclear spin ensemble coupled to the Nambu-Goldstone boson in GaAs semiconductors and show it exhibits both collective and individual relaxation (thermalization) on very different time scales. Further the collective relaxation of the nuclear spin ensemble is what one would expect from superradiant decay. This opens up the possibility for the exploration of novel collective behaviour in solid state systems where the natural energies associated with those spins are much less than the thermal energy.
arXiv comment11 pages including supplementary material
References in corpus (29)
- Topological Insulators
- Topological insulators and superconductors
- Quantum Cryptography
- Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
- Quantum-enhanced measurements: beating the standard quantum limit
- Spins in few-electron quantum dots
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Cold atoms in cavity-generated dynamical optical potentials
- Quantum technologies with hybrid systems
- Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Hybrid quantum devices and quantum engineering
- Dicke Superradiance in Solids
- Superradiant Hybrid Quantum Devices
- Electrically-Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall states
- Topical Review: Spins and mechanics in diamond
- Inversion of Qubit Energy Levels in Qubit-Oscillator Circuits in the Deep-Strong-Coupling Regime
- Double-layer quantum Hall antiferromagnetism at filling fraction nu=2/(odd integer)
- Dynamical Exploration of Amplitude Bistability in Engineered Quantum Systems
- Electromodulation of the bilayer =2 quantum Hall phase diagram
- NMR Evidence for Spin Canting in a Bilayer nu = 2 Quantum Hall System
- Optical Superradiance from Nuclear Spin Environment of Single Photon Emitters
- Relaxation to Negative Temperatures in Double Domain Systems
- Decoherence of nuclear spins due to direct dipole-dipole interactions probed by resistively detected nuclear magnetic resonance
- Magnetotransport Study of the Canted Antiferromagnetic Phase in Bilayer Quantum Hall State
- Non-equilibrium fractional quantum Hall states visualized by optically detected MRI
- Negative-Temperature State Relaxation and Reservoir-Assisted Quantum Entanglement in Double Spin Domain Systems
- Nuclear Magnetometry Study of Spin Dynamics in Bilayer Quantum Hall Systems
- Dicke Model for Quantum Hall Systems