



@article {1268,
	title = {Experimental Performance of a Quantum Simulator: Optimizing Adiabatic  Evolution and Identifying Many-Body Ground States
},
	journal = {Physical Review A},
	volume = {88},
	year = {2013},
	month = {2013/7/31},
	abstract = {  We use local adiabatic evolution to experimentally create and determine the
ground state spin ordering of a fully-connected Ising model with up to 14
spins. Local adiabatic evolution -- in which the system evolution rate is a
function of the instantaneous energy gap -- is found to maximize the ground
state probability compared with other adiabatic methods while only requiring
knowledge of the lowest $\sim N$ of the $2^N$ Hamiltonian eigenvalues. We also
demonstrate that the ground state ordering can be experimentally identified as
the most probable of all possible spin configurations, even when the evolution
is highly non-adiabatic.
},
	doi = {10.1103/PhysRevA.88.012334},
	url = {http://arxiv.org/abs/1305.2253v1},
	author = {Philip Richerme and Crystal Senko and Jacob Smith and Aaron Lee and Simcha Korenblit and Christopher Monroe}
}
@article {1270,
	title = {Quantum Catalysis of Magnetic Phase Transitions in a Quantum Simulator},
	journal = {Physical Review Letters},
	volume = {111},
	year = {2013},
	month = {2013/9/5},
	abstract = {  We control quantum fluctuations to create the ground state magnetic phases of
a classical Ising model with a tunable longitudinal magnetic field using a
system of 6 to 10 atomic ion spins. Due to the long-range Ising interactions,
the various ground state spin configurations are separated by multiple
first-order phase transitions, which in our zero temperature system cannot be
driven by thermal fluctuations. We instead use a transverse magnetic field as a
quantum catalyst to observe the first steps of the complete fractal devil{\textquoteright}s
staircase, which emerges in the thermodynamic limit and can be mapped to a
large number of many-body and energy-optimization problems.
},
	doi = {10.1103/PhysRevLett.111.100506},
	url = {http://arxiv.org/abs/1303.6983v2},
	author = {Philip Richerme and Crystal Senko and Simcha Korenblit and Jacob Smith and Aaron Lee and Rajibul Islam and Wesley C. Campbell and Christopher Monroe}
}
@article {1492,
	title = {Quantum Simulation of Spin Models on an Arbitrary Lattice with Trapped  Ions
},
	journal = {New Journal of Physics},
	volume = {14},
	year = {2012},
	month = {2012/09/27},
	pages = {095024},
	abstract = {  A collection of trapped atomic ions represents one of the most attractive
platforms for the quantum simulation of interacting spin networks and quantum
magnetism. Spin-dependent optical dipole forces applied to an ion crystal
create long-range effective spin-spin interactions and allow the simulation of
spin Hamiltonians that possess nontrivial phases and dynamics. Here we show how
appropriate design of laser fields can provide for arbitrary multidimensional
spin-spin interaction graphs even for the case of a linear spatial array of
ions. This scheme uses currently existing trap technology and is scalable to
levels where classical methods of simulation are intractable.
},
	doi = {10.1088/1367-2630/14/9/095024},
	url = {http://arxiv.org/abs/1201.0776v1},
	author = {Simcha Korenblit and Dvir Kafri and Wess C. Campbell and Rajibul Islam and Emily E. Edwards and Zhe-Xuan Gong and Guin-Dar Lin and Luming Duan and Jungsang Kim and Kihwan Kim and Christopher Monroe}
}
