Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Richerme, P"'
The accurate computational study of wavepacket nuclear dynamics is considered to be a classically intractable problem, particularly with increasing dimensions. Here we present two algorithms that, in conjunction with other methods developed by us, wi
Externí odkaz:
http://arxiv.org/abs/2412.03763
Publikováno v:
J. Am. Chem. Soc. 146, 29355 (2024)
Quantum nuclear dynamics with wavepacket time-evolution is classically intractable and viewed as a promising avenue for quantum information processing. Here, we use an IonQ 11-qubit trapped-ion quantum computer, Harmony, to study the quantum wavepack
Externí odkaz:
http://arxiv.org/abs/2406.05197
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 57 225002 (2024)
We experimentally study the heating of trapped atomic ions during measurement of their internal qubit states. During measurement, ions are projected into one of two basis states and discriminated by their state-dependent fluorescence. We observe that
Externí odkaz:
http://arxiv.org/abs/2404.09327
Publikováno v:
2024 New J. Phys. 26 023033
Trapped-ion quantum simulators have demonstrated a long history of studying the physics of interacting spin-lattice systems using globally addressed entangling operations. Here, we seek to broaden and delimit the classes of effective spin-spin intera
Externí odkaz:
http://arxiv.org/abs/2310.07859
Quantum neural networks (QNNs) succeed in object recognition, natural language processing, and financial analysis. To maximize the accuracy of a QNN on a Noisy Intermediate Scale Quantum (NISQ) computer, approximate synthesis modifies the QNN circuit
Externí odkaz:
http://arxiv.org/abs/2307.09529
Autor:
Richerme, Philip, Revelle, Melissa C., Saha, Debadrita, Lopez-Ruiz, Miguel Angel, Dwivedi, Anurag, Norrell, Sam A., Yale, Christopher G., Lobser, Daniel, Burch, Ashlyn D., Clark, Susan M., Smith, Jeremy M., Sabry, Amr, Iyengar, Srinivasan S.
Calculating the observable properties of chemical systems is often classically intractable and is widely viewed as a promising application of quantum information processing. Yet one of the most common and important chemical systems in nature - the hy
Externí odkaz:
http://arxiv.org/abs/2204.08571
Publikováno v:
Phys. Rev. A 104, 043108 (2021)
Resolved sideband cooling is a standard technique for cooling trapped ions below the Doppler limit to near their motional ground state. Yet, the most common methods for sideband cooling implicitly rely on low Doppler-cooled temperatures and tightly c
Externí odkaz:
http://arxiv.org/abs/2107.11802
Autor:
Xie, Yuanheng, Cui, Jiafeng, D'Onofrio, Marissa, Rasmusson, A. J., Howell, Stephen W., Richerme, Philip
Publikováno v:
Quantum Sci. Technol. 6, 044009 (2021)
We present the design and experimental demonstration of an open-endcap radio frequency trap to confine ion crystals in the radial-two dimensional (2D) structural phase. The central axis of the trap is kept free of obstructions to allow for site-resol
Externí odkaz:
http://arxiv.org/abs/2107.03471
Autor:
Cui, Jiafeng, Rasmusson, A. J., D'Onofrio, Marissa, Xie, Yuanheng, Wolanski, Evangeline, Richerme, Philip
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 54, 13LT01 (2021)
We experimentally study the real-time susceptibility of trapped-ion quantum systems to small doses of ionizing radiation. We expose an ion-trap apparatus to a variety of $\alpha$, $\beta$, and $\gamma$ sources and measure the resulting changes in tra
Externí odkaz:
http://arxiv.org/abs/2105.02753
The accurate computational determination of chemical, materials, biological, and atmospheric properties has critical impact on a wide range of health and environmental problems, but is deeply limited by the computational scaling of quantum-mechanical
Externí odkaz:
http://arxiv.org/abs/2103.07420