John J. Bollinger
National Institute of Standards and Technology
Ion trapNISTQuantum entanglementPhysicsPenning trapIonQuantum simulatorQuantum informationAtomic physicsMaterials scienceQubitCondensed matter physicsLaserQuantum computerElectric fieldQuantum mechanicsSpin-½PlasmaQuantumLaser cooling
309Publications
56H-index
10kCitations
Publications 276
Newest
#1Michael Foss-Feig (CU: University of Colorado Boulder)H-Index: 30
#2Kaden R. A. Hazzard (CU: University of Colorado Boulder)H-Index: 22
Last. Ana Maria Rey (CU: University of Colorado Boulder)H-Index: 62
view all 4 authors...
The interplay between interactions and decoherence in many-body systems is of fundamental importance in quantum physics. In a step toward understanding this interplay, we obtain an exact analytic solution for the nonequilibrium dynamics of Ising models with arbitrary couplings (and therefore in arbitrary dimension) and subject to local Markovian decoherence. Our solution shows that decoherence significantly degrades the nonclassical correlations developed during coherent Ising spin dynamics, whi...
Source
#1Brian C. SawyerH-Index: 18
#2Joseph W. BrittonH-Index: 43
Last. John J. BollingerH-Index: 56
view all 7 authors...
#1John J. BollingerH-Index: 56
#2Joseph W. BrittonH-Index: 43
Last. Brian C. SawyerH-Index: 18
view all 3 authors...
By employing forces that depend on the internal electronic state (or spin) of an atomic ion, the Coulomb potential energy of a strongly coupled array of ions can be modified in a spin-dependent way to mimic effective quantum spin Hamiltonians. Both ferromagnetic and anti-ferromagnetic interactions can be implemented. We use simple models to explain how the effective spin interactions are engineered with trapped-ion crystals. We summarize the type of effective spin interactions that can be readil...
Source
#1Hermann UysH-Index: 18
#2Michael J. BiercukH-Index: 32
Last. John J. BollingerH-Index: 56
view all 4 authors...
Building robust instruments capable ofmaking interferometric measurements with precision beyond the standard quantum limit remains an important goal in many metrology laboratories. We describe here the basic concepts underlying spin squeezing experiments that allow one to surpass this limit. In principle it is possible to reach the so-called Heisenberg limit, which constitutes an improvement in precision by a factorv N, where N is the number of particles on which the measurement is carried out. ...
Source
#1John J. BollingerH-Index: 56
#2Joseph W. BrittonH-Index: 43
Last. Brian C. SawyerH-Index: 18
view all 3 authors...
By employing forces that depend on the internal electronic state (or spin) of an atomic ion, the Coulomb potential energy of a strongly coupled array of ions can be modified in a spin-dependent way to mimic effective quantum spin Hamiltonians. Both ferromagnetic and anti- ferromagnetic interactions can be implemented. We use simple models to explain how the effective spin interactions are engineered with trapped-ion crystals. We summarize the type of effective spin interactions that can be readi...
#1Brian C. Sawyer (NIST: National Institute of Standards and Technology)H-Index: 18
#2Joseph W. BrittonH-Index: 43
Last. John J. BollingerH-Index: 56
view all 8 authors...
We demonstrate spectroscopy and thermometry of individual motional modes in a mesoscopic 2D ion array using entanglement-induced decoherence as a method of transduction. Our system is a ~400 μm-diameter planar crystal of several hundred 9Be(+) ions exhibiting complex drumhead modes in the confining potential of a Penning trap. Exploiting precise control over the 9Be(+) valence electron spins, we apply a homogeneous spin-dependent optical dipole force to excite arbitrary transverse modes with an ...
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.