Cavity qed approaches quantum information processing. Hauptseminar physics of cold gases cavity qed atomlight interaction different regimes i three parameters control the behaviour cavity loss. Cavity quantum electrodynamics for superconducting. Circuit quantum electrodynamics david isaac schuster 2007 this thesis describes the development of circuit quantum electrodynamics qed, architecture for studying quantum information and quantum optics. Click, drag, and drop to reorder files or press delete to remove any content you dont want. An architecture for quantum computation alexandre blais,1 renshou huang,1,2 andreas wallraff,1 s. Meissnerlike effect for a synthetic gauge field in. T, the transit time of an atom through the cavity mode. Quantum networks based on cavity qed 1 introduction no. Milburn, quantum optics spingerverlag, berlin, 1994 dressed states energy level diagram. Optical cavity qed provides a platform with which to explore quantum manybody physics in drivendissipative systems. Photon blockade in an optical cavity with one trapped atom. Quantum dot cavityqed in the presence of strong electron. The cavity qed system consists of an atom coupled to a single mode of the elec.
The potential usefulness of stirap in studies of cavity quantum electrodynamics qed was first pointed out by parkins et al. Design of photonic crystal microcavities for cavity qed. This document constitutes the most recent draft of the cavity qed quantum electro dynamics detailed summary in the process of developing a roadmap for achieving. Protecting a spin ensemble against decoherence in the strongcoupling regime of cavity qed. The vacuum rabi frequency for the coupling of cavity photons to quantized excitations of an adjacent electrical circuit qubit can easily exceed. Quantum efficiency of singlephoton sources in the cavity qed strongcoupling regime guoqiang cui and michael g. In the menu at the top, select view make sure thumbnails is checked in the dropdown menu. By approximating the weak coherent drive by an input single and twophoton. Coherent operation of a tunable quantum phase gate in cavity qed. Cavity quantum electrodynamics addresses a fascinating question in physics.
Cavity quantum elearodynamics a new generation of experiments shows tiioi spontaneous radiation from excited atams can be greatiy suppressed or enhanced by placing the atams between mirrors or in cavities. Circuit quantum electrodynamics schoelkopf lab yale university. Cavity quantum electrodynamics with a single quantum dot. However, these global alltoall couplings are limiting from the perspective. You can merge pdfs or a mix of pdf documents and other files. This is a workable scheme because for excitationoftheqdcavitysystem,wecansimplyrem. Photon blockade in weaklydriven cavity qed systems with. Cavity quantum electrodynamics qed offers powerful possibilities for the deterministic control of atomphoton interactions quantum by quantum. Jeff kimble abstract using lasercooled atoms strongly coupled to a high. How to merge pdfs and combine pdf files adobe acrobat dc. See supplementary info in ancillary files pages, 11 figures.
Zoller institute for theoretical physics, university of innsbruck, and institute for quantum optics and quantum communication, austrian academy of sciences, technikerstrasse 25, 6020 innsbruck, austria and norman bridge laboratory of physics 1233. In circuit qed a superconducting qubit acting as an arti. Rearrange individual pages or entire files in the desired order. We present a general framework for cavity quantum electrodynamics with strongly. Autonomous maxwells demon in a cavity qed system baldoluis naj erasantos, 1patrice a.
Cavity quantum electrodynamic qed effects are studied in semiconductor microcavities embedded with ingaas quantum dots. Proposed realization of the dickemodel quantum phase. The gate is not affected by the atomic decay rates because of the metastable lower levels are involved in the gate operations. Circuit cavity qed with macroscopic solidstate spin ensembles. Within the framework of cavity qed, the fully quantum version of the rabi model leads to the jaynes cummings jc model 23, which is the keystone in the theory of coherent interaction of a twolevel system with the. The steadystate transmission spectrum of a cavity with two modes of orthogonal polarization strongly coupled to a single atom with multiple zeeman states is computed. Kimble norman bridge laboratory of physics, california institute of technology 1233, pasadena, california 91125 received 2 august 1999 by integrating the techniques of laser cooling and trapping with those of cavity quantum. At last, in contrast to the single mode case, multimode coupling of cavity photon and cyclotron transition can greatly reduce the critical vacuum rabi frequency required for quantum phase transition, and dramatically enhance the superradiant emission by fast modulating the hamiltonian. Iii we present our designs of microcavities optimized for strong coupling between the cavity. Trapping of single atoms with single photons in cavity qed. Quantum efficiency of singlephoton sources in the cavity. The transmittance is high when the probe laser is on resonance with a cavity mode. If your open pdf has more than a single page, select a thumbnail in the lefthand side where you want to insert another pdf file.
Quantum manipulation and measurement of single atoms in. Cavity qed of superradiant phase transition in two. Cavity qed experiments have entered a new era in recent years, with the advent of single atom intracavity trapping. When an atom enters, it acts like a dispersive medium and thus the mode energies are e. Cavity quantum electrodynamics our research activity focuses on the manipulation of rydberg atoms in three different experimental configurations.
Fibercoupled cavityqed source of identical single photons. Figures 2b and 2c the blue line show single photons. Cavity quantum electrodynamics for superconducting electrical circuits. Solitons in cavityqed arrays containing interacting qubits. In addition, highefficiency, lowthreshold lasing is. As a demonstration, composite laser pulse sequences were used to implement phase. Q nonresonant decay coupling parameter g0 i weak coupling regime. Tunablerange, photonmediated atomic interactions in. Effects due to cavity birefringence and atomic acstark shifts are included. Click add files and select the files you want to include in your pdf. Characteristic parameters of atom, cavity, and environment. They proposed to use stirap to create coherent superpositions of photonnumber states by strongly coupling an atom to the field within a cavity of volume v.
Ginzton laboratory, stanford university, stanford, california 94305,usa received 30 january 2012. It could in principle be used to construct a quantum computer. Based on numerical analysis using the threedimensional 3d. The deutschjozsa algorithm is easily realizedwith current experimental techniques.
Proposed realization of the dickemodel quantum phase transition in an optical cavity qed system f. Pra 82, 043612 2010 university of virginia condensed matter seminar feb 3, 2011. A fiber coupled cavity qed source of identical single photons. Pdf coherent operation of a tunable quantum phase gate. Trapping of single atoms in cavity qed university of colorado. Cavity quantum electrodynamics with quantum dots in microcavities. Lev,2 and jonathan keeling1 1supa, school of physics and astronomy, university of st. How to combine pdf files into one document lifewire. Using twoqubits coupled via a threemode cavity system we spectroscopically observe multimode strong couplings up to 102mhz and.
We first derive the master equation, the fokkerplanck equation and the heisenberglangevin equations of motion for the cavity field. The transmission spectrum is compared to experimental results for a single cesium atom trapped via an intracavity fort in a fabryperot cavity. Schoelkopf1 1departments of physics and applied physics, yale university, new haven, connecticut 06520, usa 2department of physics, indiana university, bloomington, indiana 47405, usa. Evidence of weak coupling in the form of lifetime enhancement the purcell effect and inhibition is found in both oxideapertured micropillars and photonic crystals. Cavity quantum electrodynamics cavity qed is the study of the interaction between light confined in a reflective cavity and atoms or other particles, under conditions where the quantum nature of light photons is significant. Introduction to circuit qed lecture 2 theory smg liang jiang leonid glazman m. Cavity quantum electrodynamics with frequencydependent. Experiments described in this thesis represent significant progress in these areas. Technical report nature 436, 8790 7 july 2005, california institute of technology, california, 2005.
Meissnerlike effect for a synthetic gauge field in multimode cavity qed kyle e. High contrast qubit interactions using multimode cavity qed. Cavity qed studies the interaction of an atom with a single or a pair of modes of the electromagnetic field. We use the scattering matrix formalism to analyze photon blockade in coherentlydriven cqed systems with a weak drive. Singlemode cavities provide strong, infiniterange photonmediated interactions among intracavity atoms. Strong coupling cavity qed renshou huang, alexandre blais, andreas wallraff, david schuster, sameer kumar, luigi frunzio, hannes majer. Andrews ky16 9ss, united kingdom 2departments of physics and applied physics and ginzton laboratory, stanford university, stanford, california 94305, usa. This is always the case with mirrors, waveguides, or bad cavities. With the aid of a modelbuilding approach, readers discover the answer to this question and come to appreciate its important applications in computing, cryptography. Hardwaree cient fermionic simulation with a cavityqed system. Quantum dot cavity qed in the presence of strong electronphonon interactions i. The quantized field of the singlemode resonator provided the stokes field. In the present work, we assume that only one species of qubits is considered.
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