Phonon-Induced Decoherence in Color-Center Qubits
arXiv:2305.05049 · doi:10.1103/PhysRevResearch.6.013055
Abstract
Electron spin states of solid-state defects such as Nitrogen- and Silicon-vacancy {\em color centers} in diamond are a leading quantum-memory candidate for quantum communications and computing. Via open-quantum-systems modeling of spin-phonon coupling -- the major contributor of decoherence -- at a given temperature, we derive the time dynamics of the density operator of an electron-spin qubit. We use our model to corroborate experimentally-measured decoherence rates. We further derive the temporal decay of distillable entanglement in spin-spin entangled states heralded via photonic Bell-state measurements. Extensions of our model to include other decoherence mechanisms, e.g., undesired hyperfine couplings to the neighboring nuclear-spin environment, will pave the way to a rigorous predictive model for engineering artificial-atom qubits with desirable properties.
arXiv commentMain text: 9 pages, Appendix: 7 pages, 11 figures. Comments and feedback are welcome!
References in corpus (26)
- Single-Photon Switching and Entanglement of Solid-State Qubits in an Integrated Nanophotonic System
- Realization of a multi-node quantum network of remote solid-state qubits
- A short introduction to the Lindblad Master Equation
- Efficient high-fidelity quantum computation using matter qubits and linear optics
- Experimental demonstration of memory-enhanced quantum communication
- A 10-qubit solid-state spin register with quantum memory up to one minute
- The electronic structure of the silicon vacancy color center in diamond
- Large-scale integration of near-indistinguishable artificial atoms in hybrid photonic circuits
- Qubit teleportation between non-neighboring nodes in a quantum network
- Quantum Nonlinear Optics with a Germanium-Vacancy Color Center in a Nanoscale Diamond Waveguide
- Quantum networks based on color centers in diamond
- Electron-phonon processes of the silicon-vacancy centre in diamond
- Robust multi-qubit quantum network node with integrated error detection
- An integrated nanophotonic quantum register based on silicon-vacancy spins in diamond
- Coherent control of the silicon-vacancy spin in diamond
- Transform-limited photons from a coherent tin-vacancy spin in diamond
- {\emph{Ab initio} magneto-optical spectrum of Group-IV -- Vacancy color centers in diamond
- Rate-distance tradeoff and resource costs for all-optical quantum repeaters
- Lead-Related Quantum Emitters in Diamond
- Quantum control of the tin-vacancy spin qubit in diamond
- Narrow-linewidth tin-vacancy centers in a diamond waveguide
- Fundamentals of Quantum Mechanics in Liouville Space
- Entangling remote qubits using the single-photon protocol: an in-depth theoretical and experimental study
- Frequency control of single quantum emitters in integrated photonic circuits
- Analyzing photon-count heralded entanglement generation between solid-state spin qubits by decomposing the master equation dynamics
- Entangling Quantum Memories via Heralded Photonic Bell Measurement