Perfect State Transfer without State Initialization and Remote Collaboration

Abstract

We present a perfect state transfer protocol via a qubit chain with the evolution governed by the $xx$ Hamiltonian. In contrast to the recent protocol announced in [Phys. Rev. Lett. {\bf 101}, 230502 (2008)], our method does not demand any remote-cooperated initialization and sending classical information about measurement outcomes. We achieve the perfect state transfer only with the assumption of access to two spins at each end of the chain, while the initial state of the whole chain is irrelevant.

References in corpus (10)

• Conclusive and arbitrarily perfect quantum state transfer using parallel spin chain channels
• Unmodulated spin chains as universal quantum wires
• Quantum state transfer via the ferromagnetic chain in a spatially modulated field
• Perfect quantum state transfer with randomly coupled quantum chains
• Perfect state transfer on a spin-chain without state initialization
• Electron wavepacket propagation and entanglement in a chain of coupled quantum dots
• Coupling strength estimation for spin chains despite restricted access
• Solid-State Quantum Communication With Josephson Arrays
• Optimal quantum chain communication by end gates
• Quantum state transfer in arrays of flux qubits

Cited by in corpus (31)

• Robust Quantum State Transfer in Random Unpolarized Spin Chains
• Long quantum channels for high-quality entanglement transfer
• Coherent state transfer via highly mixed quantum spin chains
• Transfer of arbitrary two qubit states via a spin chain
• High-dimensional quantum state transfer through a quantum spin chain
• State transfer in intrinsic decoherence spin channels
• Quantum Logic between Remote Quantum Registers
• Protected quantum-state transfer in decoherence-free subspaces
• Perfect function transfer and interference effects in interacting boson lattices
• Transport of Quantum Correlations across a spin chain
• Practicality of spin chain 'wiring' in diamond quantum technologies
• State transfer in dissipative and dephasing environments
• Quantum-state transfer in spin chains via isolated resonance of terminal spins
• Perfect State Transfer in Two and Three Dimensional Structures
• Many-qubit quantum state transfer via spin chains
• Ballistic quantum state transfer in spin chains: general theory for quasi-free models and arbitrary initial states
• Quantum state transfer via temporal kicking of information
• Mixed-state quantum transport in correlated spin networks
• Initialization and Readout of Spin Chains for Quantum Information Transport
• Turnplate of quantum state
• Optimized quantum state transfer through an XY spin chain
• Transfer arbitrary photon state along a cavity array without initialization
• Finding Traps in Non-linear Spin Arrays
• Perfect state transfer on hypercubes and its implementation using superconducting qubits
• Optimal transfer of an unknown state via a bipartite operation
• Perfect routing of quantum information in regular cavity QED networks
• Noise effects in perfect transmission of quantum states
• Enhancing quantum state transfer efficiency in binary-tree spin networks by partially collapsing measurements
• Bypassing state initialisation in perfect state transfer protocols on spin-chains
• A switching approach for perfect state transfer over a scalable and routing enabled network architecture with superconducting qubits
• Transfer of quantum-enhanced information through a many-body system