Download or read book Experimental Issues in Coherent Quantum State Manipulation of Trapped Atomic Ions written by and published by . This book was released on 1998 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods for, and limitations to, the generation of entangled states of trapped atomic ions are examined. As much as possible, state manipulations are described in terms of quantum logic operations since the conditional dynamics implicit in quantum logic is central to the creation of entanglement. Keeping with current interest, some experimental issues in the proposal for trapped-ion quantum computation by J.I. Cirac and P. Zoller (University of Innsbruck) are discussed. Several possible decoherence mechanisms are examined and what may be the more important of these are identified. Some potential applications for entangled states of trapped-ions which lie outside the immediate realm of quantum computation are also discussed.
Download or read book Experimental Issues in Coherent Quantum State Manipulation of Trapped Atomic Ions written by David J. Wineland and published by . This book was released on 1998-06-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods for, & limitations to, the generation of entangled states of trapped atomic ions are examined. As much as possible, state manipulations are described in terms of quantum logic operations since the conditional dynamics implicit in quantum logic is central to the creation of entanglement. Keeping with current interest, some experimental issues in the proposal for trapped-ion quantum computation by J.I. Cirac & Pl. Zoller are discussed. Several possible decoherence mechanisms are examined & what may be the more important of these are identified.
Download or read book Experiments with Trapped Ions written by Jennifer Flora Lilieholm and published by . This book was released on 2020 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum computing promises to revolutionize modern computation. The race to establish a reliable quantum computing system has spurred research over the globe with the goal of establishing a reliable qubit system. One of the more promising candidates are trapped ions. To that end, I have characterized, improved, and designed experiments to be performed in a novel parabolic mirror ion trap. We measured the trap to have a light collection efficiency of 39%, nearly an order of magnitude higher than the light collection of ion traps utilizing standard collection optics. The parabolic mirror also improves the quality of image collected from a trapped ion, but is limited by the micromotion the ion undergoes while at the optical focus. We designed a new trap component to allow radial control over the ion position by moving the RF null, instead of displacing it with DC bias plates. This improved trapping system is a key part of our plan to to remotely entangle an In donor defect in ZnO with a single trapped Yb+ using a 369 nm photon bus. The lifetime of the relevant ionic state is longer than that of the ZnO system by a factor of 6, leading to a greatly decreased temporal overlap in their emitted photons and thus decreased fidelity in the final entangled state if left unattended. This temporal mismatch is a long outstanding challenge when entangling disparate quantum systems, and to address it I performed numerical calculations to design an excitation pulse which can shape the emitted In photon to have an overlap of 0.99 with the Yb+ photon. This leads to a calculated entangled state fidelity of 94% and an entangled state generation rate of 21 kHz with reasonable experimental parameters. Future directions of the parabolic mirror project are the construction of an ellipsoidal mirror trap which is expected to collect light from 95% of the solid angle surrounding a trapped ion. This high light collection will enable investigations into the time dynamics of quantum jumps. These jumps occur when a weakly driven system is continuously measured, and their appearance is entirely random. However, recent work in an artificial superconducting atom suggests that there is a latency period in other transitions which precedes a jump, allowing for these events to be 'caught'. We endeavor to confirm this behavior in a trapped ion, confirming the discovery for a real atomic system.
Download or read book Charged Particle Traps II written by Günther Werth and published by Springer Science & Business Media. This book was released on 2009-09-16 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume of the Charged Particle Traps deals with the rapidly expanding body of research exploiting the electromagnetic con?nement of ions, whose principles and techniques were the subject of volume I. These applications include revolutionary advances in diverse ?elds, ranging from such practical ?elds as mass spectrometry, to the establishment of an ult- stable standard of frequency and the emergent ?eld of quantum computing made possible by the observation of the quantum behavior of laser-cooled con?nedions. Bothexperimentalandtheoreticalactivity intheseapplications has proliferated widely, and the number of diverse articles in the literature on its many facets has reached the point where it is useful to distill and organize the published work in a uni?ed volume that de?nes the current status of the ?eld. As explained in volume I, the technique of con?ning charged particles in suitable electromagnetic ?elds was initially conceived by W. Paul as a thr- dimensional version of his rf quadrupole mass ?lter. Its ?rst application to rf spectroscopy on atomic ions was completed in H. G. Dehmelt’s laboratory where notable work was later done on the free electron using the Penning trap. The further exploitation of these devices has followed more or less - dependently along the two initial broad areas: mass spectrometry and high resolution spectroscopy. In volume I a detailed account is given of the theory of operation and experimental techniques of the various forms of Paul and Penning ion traps.
Download or read book Quantum State Engineering and Information Processing with Trapped Ions written by Brian Edward King and published by . This book was released on 1999 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Robust Rotations Coherent Quantum States with a Single Trapped Ion written by Nuala Patricia Timoney and published by . This book was released on 2010 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Single Trapped Rydberg Ion written by Gerard Higgins and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems of trapped ions and systems of ultracold Rydberg atoms are used at the forefront of quantum physics research and they make strong contenders as platforms for quantum technologies. Trapped Rydberg ions are a new hybrid technology envisaged to have both the exquisite control of trapped ion systems and the strong interactions of Rydberg atoms. In this work a single trapped Rydberg ion is experimentally investigated. A trapped strontium ion is excited to Rydberg states using two ultraviolet lasers. Effects of the strong trapping electric fields on the highly-sensitive Rydberg ion are studied. After mitigating unwanted trap effects, the ion is coherently excited to Rydberg states and a quantum gate is demonstrated. This thesis lays much of the experimental groundwork for research using this novel system.
Download or read book Quantum Computing written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-04-27 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum mechanics, the subfield of physics that describes the behavior of very small (quantum) particles, provides the basis for a new paradigm of computing. First proposed in the 1980s as a way to improve computational modeling of quantum systems, the field of quantum computing has recently garnered significant attention due to progress in building small-scale devices. However, significant technical advances will be required before a large-scale, practical quantum computer can be achieved. Quantum Computing: Progress and Prospects provides an introduction to the field, including the unique characteristics and constraints of the technology, and assesses the feasibility and implications of creating a functional quantum computer capable of addressing real-world problems. This report considers hardware and software requirements, quantum algorithms, drivers of advances in quantum computing and quantum devices, benchmarks associated with relevant use cases, the time and resources required, and how to assess the probability of success.
Download or read book Quantum Dynamics with Trapped Ions written by Andreas Lemmer and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum State Manipulation and Dynamics in Micro Ion Traps written by Frank Ziesel and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantum Coherence in Trapped Ions written by Oliver Corfield and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manipulation of Entanglement and Its Realisation in Trapped Ions written by Daniel Jonathan and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 2D Arrays of Ion Traps for Quantum Information Processing written by Kumph Muir and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2015-07-10 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum computation and simulation is an emerging disruptive technology. Only first suggested by visionaries in the 1980s, in the last 30 years, small quantum computers have become a reality. Using and manipulating the quantum states of trapped atomic ions, simple programs have been run, which if scaled-up, would already give their human users immense advantages in the fields of natural simulations, search and cryptography. Trapped atomic ions have provided the highest fidelity quantum computations and simulations to date. In order to scale-up the use of these systems, several two dimensional (2D) arrays of planar-electrode ion traps were designed, simulated, and tested. The 2D arrays presented here have electronic addressability built into them. By addressable, it is meant that the control of which ion in the trap array participates in any given operation is explicit. A method to address interactions between nearest neighbors in the 2D array using an adjustable radio-frequency voltage is demonstrated by loading calcium ions into the traps and manipulating them. The theory of operation, the design methodology and the method of fabrication of the ion trap arrays is also given.
Download or read book Trapped Single Atoms and Atomic Ensembles written by Kai Eckert and published by . This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiments with Dipole allowed Transitions in Trapped Ions written by Valentin Batteiger and published by . This book was released on 2011 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultra cold Atoms Meet Trapped Ions written by Antonio Negretti and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coherence and Ultrashort Pulse Laser Emission written by F. J. Duarte and published by IntechOpen. This book was released on 2010-12-30 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, recent contributions on coherence provide a useful perspective on the diversity of various coherent sources of emission and coherent related phenomena of current interest. These papers provide a preamble for a larger collection of contributions on ultrashort pulse laser generation and ultrashort pulse laser phenomena. Papers on ultrashort pulse phenomena include works on few cycle pulses, high-power generation, propagation in various media, to various applications of current interest. Undoubtedly, Coherence and Ultrashort Pulse Emission offers a rich and practical perspective on this rapidly evolving field.
