Protecting coherence from the environment via Stark many-body localization in a Quantum-Dot Simulator
arXiv:2204.13354 · doi:10.22331/q-2024-07-02-1392
Abstract
Semiconductor platforms are emerging as a promising architecture for storing and processing quantum information, e.g., in quantum dot spin qubits. However, charge noise coming from interactions between the electrons is a major limiting factor, along with the scalability of many qubits, for a quantum computer. We show that a magnetic field gradient can be implemented in a semiconductor quantum dot array to induce a local quantum coherent dynamical bit exhibiting the potential to be used as logical qubits. These dynamical bits are responsible for the model being many-body localized. We show that these dynamical bits and the corresponding many-body localization are protected from all noises, including phonons, for sufficiently long times if electron-phonon interaction is not non-local. We further show the implementation of thermalization-based self-correcting logical gates. This thermalization-based error correction goes beyond the standard paradigm of decoherence-free and noiseless subsystems. Our work thus opens a new venue for passive quantum error correction in semiconductor-based quantum computers.
Accepted in Quantum on 2024-06-17
References in corpus (49)
- Many body localization and thermalization in quantum statistical mechanics
- Many body localization in Heisenberg XXZ magnet in a random field
- Phenomenology of fully many-body-localized systems
- Semiconductor Spin Qubits
- Electrically driven single electron spin resonance in a slanting Zeeman field
- Anomalous diffusion and Griffiths effects near the many-body localization transition
- Universal quantum control of two-electron spin quantum bits using dynamic nuclear polarization
- The germanium quantum information route
- Recent progress in many-body localization
- Absence of diffusion in an interacting system of spinless fermions on a one-dimensional disordered lattice
- Signatures of Many-Body Localization in a Controlled Open Quantum System
- Enhancing the Coherence of a Spin Qubit by Operating it as a Feedback Loop That Controls its Nuclear Spin Bath
- Observing non-ergodicity due to kinetic constraints in tilted Fermi-Hubbard chains
- Interferometric probes of many-body localization
- Quantum-Coherent Nanoscience
- Ultrafast Hole Spin Qubit with Gate-Tunable Spin-Orbit Switch
- Observation of Stark many-body localization without disorder
- Stark many-body localization on a superconducting quantum processor
- Algebraic Theory of Quantum Synchronization and Limit Cycles under Dissipation
- Quantum simulation of Fermi-Hubbard models in semiconductor quantum dot arrays
- Robust Ising Gates for Practical Quantum Computation
- Hole spin qubits in Si FinFETs with fully tunable spin-orbit coupling and sweet spots for charge noise
- A proposal for realising quantum scars in the tilted 1D Fermi-Hubbard model
- Quantum interference and phonon-mediated back-action in lateral quantum dot circuits
- Stark many-body localization: Evidence for Hilbert-space shattering
- Local and Quasilocal Conserved Quantities in Integrable Systems
- Signatures of many-body localisation in the dynamics of two-sites entanglement
- Site-selective quantum control in an isotopically enriched 28Si/SiGe quadruple quantum dot
- Spin readout of a CMOS quantum dot by gate reflectometry and spin-dependent tunnelling
- Unified theory of local quantum many-body dynamics: Eigenoperator thermalization theorems
- Spin shuttling in a silicon double quantum dot
- Do photosynthetic complexes use quantum coherence to increase their efficiency? Probably not
- Bath-induced decay of Stark many-body localization
- Relative importance of nonlinear electron-phonon coupling and vertex corrections in the Holstein model
- Dynamics of many-body localization in the presence of particle loss
- Rigorous bounds on dynamical response functions and time-translation symmetry breaking
- Dynamical scaling of correlations generated by short- and long-range dissipation
- Signatures of discrete time-crystallinity in transport through an open Fermionic chain
- Universality class of Ising critical states with long-range losses
- Out-of-Time-Ordered Crystals and Fragmentation
- Stark many-body localization transitions in superconducting circuits
- Floquet-Enhanced Spin Swaps
- Multidimensional dark space and its underlying symmetries: towards dissipation-protected qubits
- Emergence and Dynamical Stability of Charge Time-Crystal in a Current-Carrying Quantum Dot Simulator
- Protecting Quantum Information in Quantum Dot Spin Chains by Driving Exchange Interactions Periodically
- Environment assisted and environment hampered efficiency at maximum power in a molecular photo cell
- Exact bistability and time pseudo-crystallization of driven-dissipative fermionic lattices
- Tunable Non-equilibrium Phase Transitions between Spatial and Temporal Order through Dissipation
- Quantum many-body attractors