Spin Squeezing on an Atomic Clock Transition.
... Spin squeezing requires a Hamiltonian that is at least quadratic in the spin components, or equivalently, some form of interaction between the particles. While it is possible to use interatomic collisions in a Bose-Einstein condensate (BEC) for that purpose,14,15 these density-dependent interactions ...
... Spin squeezing requires a Hamiltonian that is at least quadratic in the spin components, or equivalently, some form of interaction between the particles. While it is possible to use interatomic collisions in a Bose-Einstein condensate (BEC) for that purpose,14,15 these density-dependent interactions ...
Quantum information processing with superconducting qubits in a
... of two charge states. In this letter, we show that the coupled system of a Cooper-pair box and a cavity photon mode undergoes Rabi oscillations and propose a new quantum computing scheme based on Josephson charge qubits [19]. The microwave-controlled approach proposed in our paper has the significan ...
... of two charge states. In this letter, we show that the coupled system of a Cooper-pair box and a cavity photon mode undergoes Rabi oscillations and propose a new quantum computing scheme based on Josephson charge qubits [19]. The microwave-controlled approach proposed in our paper has the significan ...
The pseudodifferential operator square root of the Klein
... not positive definite, that is, negative probabilities in finding a particle within a given space region may occur. (iii) Solutions of the KGE can possessnegative energies. This leads to the occurence of the Zitterbewegun~ and generally to difficulties for the interpretation of this equation. [Both ...
... not positive definite, that is, negative probabilities in finding a particle within a given space region may occur. (iii) Solutions of the KGE can possessnegative energies. This leads to the occurence of the Zitterbewegun~ and generally to difficulties for the interpretation of this equation. [Both ...
Introduction to Quantum Electrodynamics Peter Prešnajder
... Note: For complex scalar fields the coefficients ap a bp are independent (there is no relation among them). Simply, we have two sorts of particles: aparticles and b-particles which are antiparticles to a-particles. Particles and antiparticles have the same mass but they possess opposite electric cha ...
... Note: For complex scalar fields the coefficients ap a bp are independent (there is no relation among them). Simply, we have two sorts of particles: aparticles and b-particles which are antiparticles to a-particles. Particles and antiparticles have the same mass but they possess opposite electric cha ...
Cooling and Trapping Neutral Atoms—W. Ketterle, D.E. Pritchard
... Recently, there have been discussions about what happens to an atom when it absorbs a photon within a medium with an index of refraction n. If one assumes that after absorbing the photon, no motion is left in the medium, then the recoil momentum should be =k. However, the correct answer is that the ...
... Recently, there have been discussions about what happens to an atom when it absorbs a photon within a medium with an index of refraction n. If one assumes that after absorbing the photon, no motion is left in the medium, then the recoil momentum should be =k. However, the correct answer is that the ...
Physics 451 - BYU Physics and Astronomy
... B. The wavelength of the light is very small C. This scattering factor is evaluated at a location relatively close to the scattering center D. The incoming wave plane is not strongly altered by the scattering E. The scattering process is elastic ...
... B. The wavelength of the light is very small C. This scattering factor is evaluated at a location relatively close to the scattering center D. The incoming wave plane is not strongly altered by the scattering E. The scattering process is elastic ...
A New Model of Shiatsu Energy
... (Carrington, 2004). Most of us have unknowingly internalised a classical world-view which is of no use at all in trying to understand what happens when we work with Ki: “The concept of psycho-emotional unity of a human (and more in general a living organism)…. classical physics and the other “hard s ...
... (Carrington, 2004). Most of us have unknowingly internalised a classical world-view which is of no use at all in trying to understand what happens when we work with Ki: “The concept of psycho-emotional unity of a human (and more in general a living organism)…. classical physics and the other “hard s ...
Photonic realization of nonlocal memory effects and non
... the decoherence and the flow of information between an open quantum system and its environment has recently allowed, e.g., to drive quantum computation by dissipation [1], to control entanglement and quantum phases in many-body systems [2–4], to create an open system quantum simulator [5], and to co ...
... the decoherence and the flow of information between an open quantum system and its environment has recently allowed, e.g., to drive quantum computation by dissipation [1], to control entanglement and quantum phases in many-body systems [2–4], to create an open system quantum simulator [5], and to co ...
Suppression of Shot Noise in Quantum Point Contacts in the... A. Golub, T. Aono, and Yigal Meir
... the current. Plotting the Fano factor against conductance makes the theoretical plot practically independent of the values of "0 , U, and , which determine the dependence of the conductance on gate voltage. The ratio of g22 =g21 was assumed small (0:01) in the spirit of the model, and the curves f ...
... the current. Plotting the Fano factor against conductance makes the theoretical plot practically independent of the values of "0 , U, and , which determine the dependence of the conductance on gate voltage. The ratio of g22 =g21 was assumed small (0:01) in the spirit of the model, and the curves f ...
2. Nuclear models and stability
... The aim of this chapter is to understand how certain combinations of N neutrons and Z protons form bound states and to understand the masses, spins and parities of those states. The known (N, Z) combinations are shown in Fig. 2.1. The great majority of nuclear species contain excess neutrons or prot ...
... The aim of this chapter is to understand how certain combinations of N neutrons and Z protons form bound states and to understand the masses, spins and parities of those states. The known (N, Z) combinations are shown in Fig. 2.1. The great majority of nuclear species contain excess neutrons or prot ...
Chemistry
... nylon), ceramics (such as cookware), liquid crystals (like those in electronic displays), adhesives (used in your Post-It notes), and coatings (for example, latex paint). What is in store for the near future? One likely possibility is room-temperature superconductors. Electricity is carried by coppe ...
... nylon), ceramics (such as cookware), liquid crystals (like those in electronic displays), adhesives (used in your Post-It notes), and coatings (for example, latex paint). What is in store for the near future? One likely possibility is room-temperature superconductors. Electricity is carried by coppe ...
(Total Four Semesters, 100 marks in each Paper followed by
... Four vector potential, electromagnetic field tensor, Lorentz invariance, Lorentz force, covariant form of Maxwell’s equations, four vector current, continuity equation, Gauge invariance of Maxwell equation, electromagnetic energy- momentum tensor, Motion of charge particle in electromagnetic field, ...
... Four vector potential, electromagnetic field tensor, Lorentz invariance, Lorentz force, covariant form of Maxwell’s equations, four vector current, continuity equation, Gauge invariance of Maxwell equation, electromagnetic energy- momentum tensor, Motion of charge particle in electromagnetic field, ...
A quantum delayed choice experiment
... III. Quantum delayed-choice experiment with a Schrödinger cat-like BS R1 is produced by the field stored in a resonator, R2(θ) produced by a classical field. When the resonator is filled with a coherent field ( ), R1 is present, leading to ...
... III. Quantum delayed-choice experiment with a Schrödinger cat-like BS R1 is produced by the field stored in a resonator, R2(θ) produced by a classical field. When the resonator is filled with a coherent field ( ), R1 is present, leading to ...
Problem 1: A brief history of life in the universe
... f. proton, neutron → helium nucleus g. H2, He, CH4, NH3, H2O, dust → solar system h. H, He atoms → reionization, first generation stars and galaxies i. proton, helium nucleus (light elements) → heavy elements such as C, N, O, P, S, Fe, U; supernova explosion j. H2, CH4, NH3, H2O, etc. → amino acids, ...
... f. proton, neutron → helium nucleus g. H2, He, CH4, NH3, H2O, dust → solar system h. H, He atoms → reionization, first generation stars and galaxies i. proton, helium nucleus (light elements) → heavy elements such as C, N, O, P, S, Fe, U; supernova explosion j. H2, CH4, NH3, H2O, etc. → amino acids, ...
Room-Temperature Charge Stability Modulated by Quantum
... Coulomb peaks themselves with increasing temperature. This strongly indicates another evidence for that the Coulomb island of our device is a quite small well-defined single dot (of sub-5nm size), providing its charging energy to be large enough to get over the room-temperature thermal energy. If th ...
... Coulomb peaks themselves with increasing temperature. This strongly indicates another evidence for that the Coulomb island of our device is a quite small well-defined single dot (of sub-5nm size), providing its charging energy to be large enough to get over the room-temperature thermal energy. If th ...
Problem 1: “A brief history” of life in the universe
... f. proton, neutron → helium nucleus g. H2, He, CH4, NH3, H2O, dust → solar system h. H, He atoms → reionization, first generation stars and galaxies i. proton, helium nucleus (light elements) → heavy elements such as C, N, O, P, S, Fe, U; supernova explosion j. H2, CH4, NH3, H2O, etc. → amino acids, ...
... f. proton, neutron → helium nucleus g. H2, He, CH4, NH3, H2O, dust → solar system h. H, He atoms → reionization, first generation stars and galaxies i. proton, helium nucleus (light elements) → heavy elements such as C, N, O, P, S, Fe, U; supernova explosion j. H2, CH4, NH3, H2O, etc. → amino acids, ...
Problem 1: “A brief history” of life in the universe
... f. proton, neutron → helium nucleus g. H2, He, CH4, NH3, H2O, dust → solar system h. H, He atoms → reionization, first generation stars and galaxies i. proton, helium nucleus (light elements) → heavy elements such as C, N, O, P, S, Fe, U; supernova explosion j. H2, CH4, NH3, H2O, etc. → amino acids, ...
... f. proton, neutron → helium nucleus g. H2, He, CH4, NH3, H2O, dust → solar system h. H, He atoms → reionization, first generation stars and galaxies i. proton, helium nucleus (light elements) → heavy elements such as C, N, O, P, S, Fe, U; supernova explosion j. H2, CH4, NH3, H2O, etc. → amino acids, ...
Far-infrared Rydberg-Rydberg transitions in a magnetic field: Deexcitation of antihydrogen atoms
... extensive theoretical calculations. In the beginning the theoretical work was restricted to the hydrogen atom 关5–7兴 because of its “simplicity,” but later calculations also were done for a multi-electron system such as helium 关8,9兴. The hydrogenic ᐉ-m degeneracy of the n manifolds of the Rydberg ser ...
... extensive theoretical calculations. In the beginning the theoretical work was restricted to the hydrogen atom 关5–7兴 because of its “simplicity,” but later calculations also were done for a multi-electron system such as helium 关8,9兴. The hydrogenic ᐉ-m degeneracy of the n manifolds of the Rydberg ser ...
Hydrogen atom
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force. Atomic hydrogen constitutes about 75% of the elemental (baryonic) mass of the universe.In everyday life on Earth, isolated hydrogen atoms (usually called ""atomic hydrogen"" or, more precisely, ""monatomic hydrogen"") are extremely rare. Instead, hydrogen tends to combine with other atoms in compounds, or with itself to form ordinary (diatomic) hydrogen gas, H2. ""Atomic hydrogen"" and ""hydrogen atom"" in ordinary English use have overlapping, yet distinct, meanings. For example, a water molecule contains two hydrogen atoms, but does not contain atomic hydrogen (which would refer to isolated hydrogen atoms).