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
57H-index
10kCitations
Publications 275
Newest
#1Kevin A. GilmoreH-Index: 8
#2M. Affolter (NIST: National Institute of Standards and Technology)H-Index: 4
Last. John J. Bollinger (NIST: National Institute of Standards and Technology)H-Index: 57
view all 7 authors...
Fully controllable ultracold atomic systems are creating opportunities for quantum sensing, yet demonstrating a quantum advantage in useful applications by harnessing entanglement remains a challenging task. Here, we realize a many-body quantum-enhanced sensor to detect displacements and electric fields using a crystal of ~150 trapped ions. The center-of-mass vibrational mode of the crystal serves as a high-Q mechanical oscillator, and the collective electronic spin serves as the measurement dev...
3 CitationsSource
#1H. M. KnaackH-Index: 3
#2S. C. BurdH-Index: 8
Last. John J. BollingerH-Index: 57
view all 12 authors...
#1Chen TangH-Index: 3
#2Athreya ShankarH-Index: 7
Last. Scott ParkerH-Index: 30
view all 6 authors...
Planar thermal equilibration is studied using direct numerical simulations of ultracold two-dimensional (2D) ion crystals in a Penning trap with a rotating wall. The large magnetic field of the trap splits the modes that describe in-plane motion of the ions into two branches: High frequency cyclotron modes dominated by kinetic energy and low frequency \mathbf{E \times B}modes dominated by potential energy associated with thermal position displacements. Using an eigenmode analysis we extract t...
Source
#1Kevin A. GilmoreH-Index: 8
#2M. AffolterH-Index: 4
Last. John J. BollingerH-Index: 57
view all 7 authors...
Developing the isolation and control of ultracold atomic systems to the level of single quanta has led to significant advances in quantum sensing, yet demonstrating a quantum advantage in real world applications by harnessing entanglement remains a core task. Here, we realize a many-body quantum-enhanced sensor to detect weak displacements and electric fields using a large crystal of \sim 150trapped ions. The center of mass vibrational mode of the crystal serves as high-Q mechanical oscillato...
6 CitationsSource
A subset of QuantISED Sensor PIs met virtually on May 26, 2020 to discuss a response to a charge by the DOE Office of High Energy Physics. In this document, we summarize the QuantISED sensor community discussion, including a consideration of HEP science enabled by quantum sensors, describing the distinction between Quantum 1.0 and Quantum 2.0, and discussing synergies/complementarity with the new DOE NQI centers and with research supported by other SC offices. Quantum 2.0 advances in sensor tech...
#4John J. BollingerH-Index: 57
Last. Ana Maria ReyH-Index: 62
view all 5 authors...
We theoretically study the dynamical phase diagram of the Dicke model in both classical and quantum limits using large, experimentally relevant system sizes. Our analysis elucidates that the model features dynamical critical points that are distinct from previously investigated excited-state equilibrium transitions. Moreover, our numerical calculations demonstrate that mean-field features of the dynamics remain valid in the exact quantum dynamics, but we also find that in regimes where quantum e...
Source
#1M. Affolter (NIST: National Institute of Standards and Technology)H-Index: 4
#2Kevin A. GilmoreH-Index: 8
Last. John J. BollingerH-Index: 57
view all 4 authors...
Trapped ions are sensitive detectors of weak forces and electric fields that excite ion motion. Here measurements of the center-of-mass motion of a trapped-ion crystal that are phase-coherent with an applied weak external force are reported. These experiments are conducted far from the trap motional frequency on a two-dimensional trapped-ion crystal of approximately 100 ions, and determine the fundamental measurement imprecision of our protocol free from noise associated with the center-of-mass ...
3 CitationsSource