Parity-dependent state transfer for direct entanglement generation
arXiv:2405.19408 · doi:10.1038/s41467-025-57818-2
Abstract
As quantum information technologies advance, challenges in scaling and connectivity persist, particularly the need for long-range qubit connectivity and efficient entanglement generation. Perfect State Transfer enables time-optimal state transfer between distant qubits using only nearest-neighbor couplings, enhancing device connectivity. Moreover, the transfer protocol results in effective parity-dependent non-local interactions, extending its utility to entanglement generation. Here, we experimentally demonstrate Perfect State Transfer and multi-qubit entanglement generation on a chain of six superconducting transmon qubits with tunable couplers, controlled via parametric drives. By simultaneously activating and engineering all couplings, we implement the transfer for up to six qubits, verifying single-excitation dynamics for different initial states. Extending the protocol to multiple excitations, we confirm its parity-dependent nature, where excitation number controls the phase of the transferred state. Finally, leveraging this property, we prepare a Greenberger-Horne-Zeilinger state using a single transfer operation, showcasing the potential of Perfect State Transfer for efficient entanglement generation.
18 pages, 11 figures
References in corpus (75)
- Charge insensitive qubit design derived from the Cooper pair box
- Perfect state transfer in quantum spin networks
- Suppressing quantum errors by scaling a surface code logical qubit
- Logical quantum processor based on reconfigurable atom arrays
- Multi-party entanglement in graph states
- All photonic quantum repeaters
- Demonstration of the trapped-ion quantum-CCD computer architecture
- Perfect Transfer of Arbitrary States in Quantum Spin Networks
- Optimal Control at the Quantum Speed Limit
- 10-qubit entanglement and parallel logic operations with a superconducting circuit
- Mitigating measurement errors in multi-qubit experiments
- Graphical description of the action of local Clifford transformations on graph states
- Deterministic entanglement of superconducting qubits by parity measurement and feedback
- A Review of Perfect State Transfer and its Application as a Constructive Tool
- A universal gate for fixed-frequency qubits via a tunable bus
- Shuttling a single charge across a one-dimensional array of silicon quantum dots
- Mirror Inversion of Quantum States in Linear Registers
- Spin Chains as Perfect Quantum State Mirrors
- Fast and Unconditional All-Microwave Reset of a Superconducting Qubit
- Quantum logic gates for coupled superconducting phase qubits
- Perfect State Transfer, Effective Gates and Entanglement Generation in Engineered Bosonic and Fermionic Networks
- Coherent Quantum Transport in Photonic Lattices
- Non-Abelian Topological Order and Anyons on a Trapped-Ion Processor
- Leakage reduction in fast superconducting qubit gates via optimal control
- Perfect quantum state transfer in a superconducting qubit chain with parametrically tunable couplings
- Quantum state transfer via the ferromagnetic chain in a spatially modulated field
- One-way quantum repeater based on near-deterministic photon-emitter interfaces
- Experimental Perfect Quantum State Transfer
- Quantum Speed Limit for Perfect State Transfer in One Dimension
- Coherent spin qubit transport in silicon
- Simulation of a Heisenberg XY- chain and realization of a perfect state transfer algorithm using liquid nuclear magnetic resonance
- Efficient Long-Range Entanglement using Dynamic Circuits
- High-fidelity three-qubit iToffoli gate for fixed-frequency superconducting qubits
- How to construct spin chains with perfect state transfer
- Quantum Networks on Cubelike Graphs
- Efficient generation of graph states for quantum computation
- Graph States as a Resource for Quantum Metrology
- A Faithful Communication Hamiltonian in Photonic Lattices
- Analysis of parametrically driven exchange-type (iSWAP) and two-photon (bSWAP) interactions between superconducting qubits
- Perfect Quantum Routing in Regular Spin Networks
- Quantum crosstalk cancellation for fast entangling gates and improved multi-qubit performance
- Error-detected state transfer and entanglement in a superconducting quantum network
- Floating tunable coupler for scalable quantum computing architectures
- The SpinBus Architecture: Scaling Spin Qubits with Electron Shuttling
- Quantum transport and localization in 1d and 2d tight-binding lattices
- Many-Body Interactions with Tunable-Coupling Transmon Qubits
- Tomographic measurements on superconducting qubit states
- Fast parametric two-qubit gates with suppressed residual interaction using a parity-violated superconducting qubit
- Fast multi-qubit gates through simultaneous two-qubit gates
- Quantum spin chains with fractional revival
- Coherent transfer between low-angular momentum and circular Rydberg states
- Scalable Method for Eliminating Residual Interaction between Superconducting Qubits
- Continuous Symmetry Breaking in a Trapped-Ion Spin Chain
- Coherent population transfer in a chain of tunnel coupled quantum dots
- Extensive characterization of a family of efficient three-qubit gates at the coherence limit
- Probing confinement in a lattice gauge theory on a quantum computer
- Long-range connectivity in a superconducting quantum processor using a ring resonator
- Accurate methods for the analysis of strong-drive effects in parametric gates
- Perfect state transfers by selective quantum interferences within complex spin networks
- Perfect wave-packet splitting and reconstruction in a one-dimensional lattice
- State preparation by shallow circuits using feed forward
- Perfect State Transfer in Two and Three Dimensional Structures
- Transport of multispecies ion crystals through a junction in an RF Paul trap
- Synthesizing five-body interaction in a superconducting quantum circuit
- Quantum switching networks for perfect qubit routing
- Enhanced quantum state transfer: Circumventing quantum chaotic behavior
- Controlled-Controlled-Phase Gates for Superconducting Qubits Mediated by a Shared Tunable Coupler
- Para-Krawtchouk polynomials on a bi-lattice and a quantum spin chain with perfect state transfer
- Single Shot i-Toffoli Gate in Dispersively Coupled Superconducting Qubits
- Perfect coherent transfer in an on-chip reconfigurable nanoelectromechanical network
- Tunable self-assembled spin chains of strongly interacting cold atoms
- Generating Quantum States through Spin Chain Dynamics
- A novel analytic spin chain model with fractional revival
- Perfect transfer of multiple excitations in quantum networks
- Tailoring Spin Chain Dynamics for Fractional Revivals
Cited by in corpus (5)
- Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits
- Fast and efficient long-distance quantum state transfer in long-range spin- models
- Synthetic fractional flux quanta in a ring of superconducting qubits
- Perfect Wave Transfer in Continuous Quantum Systems
- Remote entanglement generation via enhanced quantum state transfer