Implementation of a two-qubit state by an auxiliary qubit on the three-spin system
arXiv:1905.07281 · doi:10.1088/1402-4896/ab4b40
Abstract
The method for preparation of a two-qubit state on two spins-1/2 that mutually interact through an auxiliary spin is proposed. The essence of the method is that, initially, the three spins evolve under the action of an external magnetic field during a predefined period of time. Then, the auxiliary spin is measured by a monochromatic electromagnetic radiation that allows obtaining a certain state of the remaining spins. We study the entanglement of this state and obtain the condition for achieving the maximally entangled state. The implementation of the method on the physical system of nuclear spins of xenon difluoride is described. As a results, the conditions which allow preparing the maximally entangled state on this system are obtained.
arXiv comment8 pages, 3 figures
References in corpus (49)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Quantum Computation with Quantum Dots
- Experimental quantum teleportation
- Elementary gates for quantum computation
- Quantum Computing
- Entanglement of a Pair of Quantum Bits
- Quantum state engineering with Josephson-junction devices
- Coupled quantum dots as quantum gates
- Coupling Superconducting Qubits via a Cavity Bus
- Driven coherent oscillations of a single electron spin in a quantum dot
- NMR Techniques for Quantum Control and Computation
- Controlling Spin Exchange Interactions of Ultracold Atoms in Optical Lattices
- Multi-particle entanglement of hot trapped ions
- Coherent control of a single electron spin with electric fields
- Engineered 2D Ising interactions on a trapped-ion quantum simulator with hundreds of spins
- Effective quantum spin systems with ion traps
- Electron Spin Resonance Transistors for Quantum Computing in Silicon-Germanium Heterostructures
- A single-atom electron spin qubit in silicon
- Single-shot readout of an electron spin in silicon
- Electron spin coherence exceeding seconds in high purity silicon
- Natural and artificial atoms for quantum computation
- Quantum spin dynamics and entanglement generation with hundreds of trapped ions
- High-fidelity readout and control of a nuclear spin qubit in silicon
- Counterflow Superfluidity of Two-Species Ultracold Atoms in a Commensurate Optical Lattice
- Solid state quantum memory using the 31P nuclear spin
- Room temperature quantum bit storage exceeding 39 minutes using ionized donors in 28-silicon
- Quantum limits to dynamical evolution
- Experimental Realization of Universal Geometric Quantum Gates with Solid-State Spins
- Ion-trap quantum logic using long-wavelength radiation
- High-fidelity spin and optical control of single silicon vacancy centres in silicon carbide
- Sub-Riemannian Geometry and Time Optimal Control of Three Spin Systems: Quantum Gates and Coherence Transfer
- Natural two-qubit gate for quantum computation using the XY interaction
- Hydrogenic Spin Quantum Computing in Silicon: A Digital Approach
- Time Optimal Unitary Operations
- Entanglement between an electron and a nuclear spin 1/2
- Speed limits for quantum gates in multi-qubit systems
- The role of entanglement in dynamical evolution
- Optical Lattices, Ultracold Atoms and Quantum Information Processing
- Electric field-driven coherent spin reorientation of optically generated electron spin packets in InGaAs
- Quantum computation with Josephson-qubits by using a current-biased information bus
- Time Optimal Control of Coupled Qubits Under Non-Stationary Interactions
- Broadband Geodesic Pulses for Three Spin Systems: Time-Optimal Realization of Effective Trilinear Coupling Terms and Indirect SWAP Gates
- Analysis of quantum coherence in bismuth-doped silicon: a system of strongly coupled spin qubits
- Entanglement and the Quantum Brachistochrone Problem
- Time-optimal synthesis of unitary transformations in coupled fast and slow qubit system
- Quantum brachistochrone problem for two spins-1/2 with anisotropic Heisenberg interaction
- Tomography scheme for two spin-1/2 qubits in a double quantum dot
- Genuine tripartite entanglement in quantum brachistochrone evolution of a three-qubit system
- Preparation of quantum states of two spin- particles in the form of the Schmidt decomposition