The Quadratic Spin Squeezing Operators

Abstract

We discuss generic spin squeezing operators (quadratic in angular momentum operators) capable of squeezing out quantum mechanical noise from a system of two-level atoms (spins) in a coherent state. Such systems have been considered by Kitagawa and Ueda (Refs. 2) in this context and a Hamiltonian of this nature governs the Lipkin model (Ref. 14) which is relevant to nuclear physics.

To appear in J. Phys. A (England)

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• Quantum computation with ions in thermal motion
• Multi-particle entanglement of hot trapped ions
• Many-particle entanglement with Bose--Einstein condensates
• Quantum state transfer between field and atoms in Electromagnetically Induced Transparency
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• Diabolical Points in Magnetic Molecules: An Exactly Solvable Model
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Cited by in corpus (5)

• Quantum spin squeezing
• Spin squeezing and entanglement via finite-dimensional discrete phase-space description
• Quasiprobability distribution functions for finite-dimensional discrete phase spaces: Spin-tunneling effects in a toy model
• Exact solution of the two-axis countertwisting Hamiltonian
• Entangling capabilities of Symmetric two qubit gates