Hyperfine molecular Hubbard Hamiltonian

The Bose-Hubbard Hamiltonian

One of the exciting prospects of the physics of dilute bose gasses is the realization of optical lattices. The combination of many body physics together with a high degree of tunability makes these systems promising test beds for theoretical techniques and novel devices. In particular given their high degree of quantum coherence they represent the (long term) possibility of a universal quantum ...

Hopping modulation in a one-dimensional Fermi-Hubbard Hamiltonian.

We consider a strongly repulsive two-component Fermi gas in a one-dimensional optical lattice described in terms of a Hubbard Hamiltonian. We analyze the response of the system to a periodic modulation of the hopping amplitude in the presence of a large two-body interaction. By (essentially) the exact simulations of the time evolution, we find a nontrivial double occupancy frequency dependence....

Hole dynamics in the two-dimensional strong-coupling Hubbard Hamiltonian.

The hyperfine structure of the hydrogen molecular ion

Theoretical investigations of the hyperfine structure of the hydrogen molecular ion (one electron and two protons) are discussed. The nuclear spin-rotation interaction has been found to be of the same sign as in the hydrogen molecule and the hyperfine transition frequencies can be accurately predicted. With measurements of the hyperfine structure of the deuterium molecular ion (or of HD) it sho...

OH hyperfine ground state: From precision measurement to molecular qubits

We perform precision microwave spectroscopy—aided by Stark deceleration—to reveal the low-magneticfield behavior of OH in its 2 3/2 rovibronic ground state, identifying two field-insensitive hyperfine transitions suitable as qubits and determining a differential Landé g factor of 1.267 5 10−3 between opposite-parity components of the doublet. The data are successfully modeled with an effective ...