Entanglement and spin squeezing in the three-qubit transverse Ising model
arXiv:quant-ph/0409038 · doi:10.1016/j.physleta.2004.08.019
Abstract
We study entanglement and spin squeezing in the ground state of three qubits interacting via the transverse Ising model. We give analytical results for the entanglement and spin squeezing, and a quantitative relation between the concurrence, quantifying the entanglement of two spins, and the spin squeezing parameter, measuring the degree of squeezing. Finally, by appropriately choosing the exchange interaction and strengths of the transverse field, we propose a scheme for generating entangled W state from an unentangled initial state with all spins down.
Four pages and two figures
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Cited by in corpus (7)
- Quantum spin squeezing
- Extracting entanglement from identical particles
- Steered quantum coherence as a signature of quantum phase transitions in spin chains
- Spin Squeezing under Non-Markovian Channels by Hierarchy Equation Method
- Spin squeezing and concurrence
- Protecting and enhancing spin squeezing under decoherence using weak measurement
- Spin squeezing and concurrence under Lee-Yang dephasing channels