Multipulse “spin-locking” effect on a dipolar ordered state

Quiroga, Luis Miguel Santillán; Virlet, J.; Goldman, M.

doi:10.1016/0022-2364(83)90158-0

Cited by 4 publications

(2 citation statements)

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“…Nevertheless, this scheme enables the study of several interesting spin-lattice models. Similar experiments have already been performed 19,20,21 , and they constitute a proof of principle for the validity of the spintemperature concept, and for this method of manipulating the dipolar interaction. However, in these experiments only one spin species was used, which limits the freedom to manipulate the internal Hamiltonian.…”

Section: Resultsmentioning

confidence: 73%

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Quantum simulation of spin ordering with nuclear spins in a solid-state lattice

2007

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An experiment demonstrating the quantum simulation of a spin-lattice Hamiltonian is proposed. Dipolar interactions between nuclear spins in a solid state lattice can be modulated by rapid radiofrequency pulses. In this way, the effective Hamiltonian of the system can be brought to the form of an antiferromagnetic Heisenberg model with long range interactions. Using a semiconducting material with strong optical properties such as InP, cooling of nuclear spins could be achieved by means of optical pumping. An additional cooling stage is provided by adiabatic demagnetization in the rotating frame (ADRF) down to a nuclear spin temperature at which we expect a phase transition from a paramagnetic to antiferromagnetic phase. This phase transition could be observed by probing the magnetic susceptibility of the spin-lattice. Our calculations suggest that employing current optical pumping technology, observation of this phase transition is within experimental reach.

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Section: Resultsmentioning

confidence: 73%

“…Nuclear ordering has been observed in a series of experiments 15,19,20,21 . However, the effect of NMR pulse sequences to engineer an artificial Hamiltonian has not been studied in detail, and this is an issue that the current study addresses.…”

Section: Introductionmentioning

confidence: 99%