Cavity quantum electrodynamics with ion coulomb crystals. Cavity quantum electrodynamics for superconducting electrical. Cavity quantum electrodynamics for superconducting. Abstract the simplest model in quantum optics deals with a single twolevel atom interacting with a single mode of the radiation field. Pdf in this contribution, the recent development of cavityquantum electrodynamics experiments in all semiconductor microcavities using self assembled. Box 9504, 2300 ra leiden, netherlands 2departments of. Such systems are a useful tool in interferometry and spectroscopy 2, and quantum information storage and quantum simulation are promising applications 3. A single quantum emitter coupled to a resonator constitutes a cavity quantum electrodynamic cqed system for studying strong lightmatter interaction. In circuit qed a superconducting qubit acting as an arti. Quantum control of a spin qubit coupled to a photonic. Finally, it is explained why cryogenic temperatures are needed and why a voltage needs to be applied to the device. Singleatom cavity quantum electrodynamics with whisperinggallerymodes.
Cavity quantum electrodynamics with ion coulomb crystals peter herskind phd thesis. A sub40mhzlinewidth laser based on a silicon singlecrystal optical cavity t. Ye2 stateoftheart laser frequency stabilization by high. The cavity quantum electrodynamics group at lkb, in cooperation with minesparistech and inria, realized the first continuous quantum feedback experiment. The true quantum mechanical and relatistic theory of electromagnetism is called quantum electrodynamics, or qed for shot. We then discuss certain aspects of cavity quantum electrodynamics qed which studies the behavior of an atom interacting with the cavity field. Ginzton laboratory, stanford university, stanford, california 94305 paul m. Pdf solidstate cavityquantum electrodynamics with self. Quantum electrodynamics is a theory of photons interacting with the electrons and positrons of a dirac field. Discussion 257 references 263 one electron in a cavity g. Basics of cavity quantum electrodynamics springerlink. This makes the welldeveloped tools of cavity quantum electrodynamics with single atoms available in the realm of cavity optomechanics. Cavity quantum electrodynamics cqed provides experimental access to the fundamental physics of lightmatter interactions 1.
Quantum control of a spin qubit coupled to a photonic crystal cavity samuel g. Optimal conditions for a high quantum efficiency and a temporally localized photon emission rate are examined. Department of physics, princeton university, princeton, new. Cavity quantum electrodynamics a new generation of experiments shows that spontaneous radiation from excited atoms can be greatly suppressed or enhanced by placing the atoms between mirrors or in cavities. Cavity quantum electrodynamics studies with sitecontrolled. It realizes an open quantum system in which the coupling to the environment is highly controllable. An architecture for quantum computation alexandre blais,1 renshou huang,1,2 andreas wallraff,1 s. Department of physics, university of konstanz, d78457 konstanz, germany 2. Polarization degenerate solidstate cavity quantum electrodynamics morten p. Superconductorsemiconductor hybrid cavity quantum electrodynamics guido burkard1, michael j. 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. With an eye toward achieving a scalable quantum computer1 and more recently a photonic quantum simulator24 signi.
Collective lightmatter interactions are fundamental to cavity quantum electrodynamics cqed 1 and a key feature is the strong coupling regime, where excitations are coherently transferred. Sep 28, 2017 collective lightmatter interactions are fundamental to cavity quantum electrodynamics cqed 1 and a key feature is the strong coupling regime, where excitations are coherently transferred. In a circuit realization of cavity qed 2, we carefully investigate the quantumtoclassical transition of a harmonic. Capturing vacuum fluctuations and photon correlations in. Cavity quantum electrodynamics cqed studies the properties of atoms coupled to discrete photon modes in high q cavities.
By properly accounting for the quantum statistics of the vacuum field, while using mixed quantumclassical mean field trajectories to describe the evolution, we identify a surprisingly accurate and promising route towards describing quantum effects in realistic correlated lightmatter systems. They maintain a constant number of photons in a photon box, a highquality cavity. Quantum efficiency of singlephoton sources in the cavity. Structural aspects of the atom cavity system 212 iv. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. He is a member of the following eufunded ist projects. By properly accounting for the quantum statistics of the vacuum field, while using mixed quantum classical mean field trajectories to describe the evolution, we identify a surprisingly accurate and promising route towards describing quantum effects in realistic correlated lightmatter systems.
Roomtemperature cavity quantum electrodynamics with strongly. A sub40mhzlinewidth laser based on a silicon single. Strong versus weak coupling for open quantum systems 205 iii. Strong coupling of a single photon to a superconducting qubit. As a result, large efforts focus on the growth and the device integration of sitecontrolled qds. Research in cqed has led to numerous cuttingedge experiments comprising. Dynamical processes for the atom cavity system 233 v. Ginzton laboratory, stanford university, stanford, california 94305,usa. Jun 15, 2001 we investigate cavity quantum electrodynamics qed effects in an allsemiconductor nanostructure by tuning a single selfassembled inas quantum dot qd into resonance with a high quality factor microdisk whispering gallery mode wgm. Agarwal1 and yifu zhu2 1department of physics, oklahoma state university, stillwater, oklahoma 74078, usa 2department of physics, florida international university, miami, florida 33199, usa we propose and analyze a scheme for photon trapping in an optical resonator coupled with twolevel atoms. In this article we elaborate on this scheme and provide detailed derivations and technical comments.
As well these same elements can be used to create artificial atoms and lattices to simulate a variety of interesting physics. Qed mathematically describes all phenomena involving electrically charged particles interacting by. Eindhoven university of technology master optical control. It could in principle be used to construct a quantum computer the case of a single 2level atom in the cavity is mathematically described by the. Cavity quantum electrodynamics with a single quantum dot coupled to a photonic molecule arka majumdar, armand rundquist, michal bajcsy, and jelena vu. The mode structure of a confined electromagnetic field is drastically modified by the boundary conditions. In addition to demonstrating dramatic changes in spontaneous emission, cavity qed has led to the creation of new kinds of microscopic masers that operate with a single atom and a few photons or with photons emitted in pairs in a twophoton. Here, we demonstrate complete quantum control of a quantum dot spin qubit coupled to a photonic crystal cavity. Cavity quantum electrodynamics addresses a fascinating question in physics. In a circuit realization of cavity qed 2, we carefully investigate the quantum toclassical transition of a harmonic. Cavity quantum electrodynamics qed 1 enables the study of the nature of matter light interactions in exquisite detail. The paper is intended as a brief overview for professionals who are coming over to the field from other areas and who may have not discussed the concepts behind quantum computing during their technical training.
Coupling to modes of a nearconfocal optical resonator. In atomic cavity quantum electrodynamics qed, an isolated atom with electric dipole moment d interacts with the vacuum state electric field e 0 of a cavity. Feynman quantum electrodynamics w a benjamin 1961 acrobat 7 pdf 7. Coupling to modes of a nearconfocal optical resonator using. Exploring models of associative memory via cavity quantum electrodynamics sarang gopalakrishnan department of physics, university of illinois at urbanachampaign, 1110 west green street urbana, illinois 61801 benjamin l. Quantum electrodynamics establishes the coupling between light and matter at a fundamental level. This ideal situation is implemented in optical cavity quantum electrodynamics ocqed experiments, using high quality microwave or optical. Goldbart c a department of physics, university of illinois at urbanachampaign, 1110 west green street urbana, illinois 61801, usa b departments of applied physics and physics and e. Simple soluble models of quantum damping applied to cavity. The level of presentation is suitable for the advanced graduate student and research scientist seeking an. Atoms perform quantum measurements of the photon number, weak enough to avoid spoiling the state.
Bracker1 and daniel gammon1 a key ingredient for a quantum network is an interface between stationary quantum bits and photons, which act as. Quantum information and cavity qed principle of cavity qed experiments. Using classic circuit elements like capacitors and inductors along with nonlinear elements like the josephson junction, quantum circuits can be constructed to make qubits, the building blocks to making a quantum computer. Cavity quantum electrodynamics with ion coulomb crystals peter herskind phd thesis danish national research foundation center for quantum optics quantop department of physics and astronomy the university of aarhus september 2008. Roomtemperature cavity quantum electrodynamics with. In particle physics, quantum electrodynamics qed is the relativistic quantum field theory of electrodynamics. Cavity quantum electrodynamics with a single quantum dot. It could in principle be used to construct a quantum computer. An introduction to quantum computing using cavity qed concepts.
Ginzton laboratory, stanford university, stanford, ca 94305, usa. Cavity quantum electrodynamics with nontransversal photons. Research institute for solid state physics and optics, budapest modern fejlemenyek a kvantumelm. 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. Pdf collective cavity quantum electrodynamics with. Agarwal1 and yifu zhu2 1department of physics, oklahoma state university, stillwater, oklahoma 74078, usa 2department of physics, florida international university, miami, florida 33199, usa we propose and analyze a scheme for photon trapping in an optical resonator coupled with twolevel. Ginzton laboratory, stanford university, stanford, california 94305,usa received 30 january 2012. Cavity quantum electrodynamics for superconducting electrical circuits. Cavityquantum electrodynamics using a single inas quantum.
In addition, the interaction of the quantum dot with its semiconductor envi ronment gives rise to novel phenomena unique to a solid state cavity qed system. Structural aspects of the atomcavity system 212 iv. Structure and dynamics in cavity quantum electrodynamics h. Such systems are a useful tool in interferometry and spectroscopy 2, and quantum information storage and. Such systems are of great interest in the study of the fundamental quantum mechanics of open systems, the engineering of quantum states, and measurementinduced decoherence and have also been proposed as possible. Schoelkopf1 1departments of physics and applied physics, yale university, new haven, connecticut 06520, usa 2department of physics, indiana university, bloomington, indiana. Quantum electrodynamics pdf pdf book manual free download. Quantumtoclassical transition in cavity quantum electrodynamics. Quantum information processing and communication in europe. Pdf collective cavity quantum electrodynamics with multiple. We investigate cavityquantum electrodynamics qed effects in an allsemiconductor nanostructure by tuning a single selfassembled inas quantum dot qd into resonance with a high quality factor microdisk whispering gallery mode wgm. We show 1 controlled charging of a quantum dot in a cavity with a single electron using a diode incorporated into the.
Exploring models of associative memory via cavity quantum. Strong coupling of a single photon to a superconducting. Cavity quantum electrodynamics our research activity focuses on the manipulation of rydberg atoms in three different experimental configurations. Quantum control of a spin qubit coupled to a photonic crystal. In recent years, cavity experiments have also been conducted on a. Sweeney2, mijin kim3, chul soo kim1,dmitrysolenov2, sophia e. Dynamical processes for the atomcavity system 233 v. We describe a qualitatively new regime of cavity quantum electrodynamics, the super strong coupling regime.
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