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... atomic memories fails to absorb a photon. A method has also been proposed4, 5 for converting multiphoton events, i.e., loading intervals in which any of the memory cavities absorbs two or more photons, into erasure events. After eliminating erasures, the only remaining loading events are those in wh ...
... atomic memories fails to absorb a photon. A method has also been proposed4, 5 for converting multiphoton events, i.e., loading intervals in which any of the memory cavities absorbs two or more photons, into erasure events. After eliminating erasures, the only remaining loading events are those in wh ...
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Pdf [234 KB]
... It has been recognized for many years that of all the elements in their solid forms, helium exhibits the strongest quantum effects. Theoretically, this can be seen by comparing the pair interaction energy, V(a), with the zero-point energy, '\2/(ma 2 ! ~m5atomic mass and a5interatomic spacing!. For m ...
... It has been recognized for many years that of all the elements in their solid forms, helium exhibits the strongest quantum effects. Theoretically, this can be seen by comparing the pair interaction energy, V(a), with the zero-point energy, '\2/(ma 2 ! ~m5atomic mass and a5interatomic spacing!. For m ...
Single-electron pumping in silicon quantum dots
... In 1909, Robert Millikan and Harvey Fletcher obtained experimental evidence suggesting that there is a smallest possible quantum of charge, which they proposed to be the charge of the electron [2]. Nowadays the absolute magnitude of electron charge is referred to as the elementary charge since it is ...
... In 1909, Robert Millikan and Harvey Fletcher obtained experimental evidence suggesting that there is a smallest possible quantum of charge, which they proposed to be the charge of the electron [2]. Nowadays the absolute magnitude of electron charge is referred to as the elementary charge since it is ...
Quantum measurements of coupled systems * L. Fedichkin, M. Shapiro,
... However, it is not of a QNDM type, both the amplitude and the phase of the excitation wave function are changed. The problem of measuring coupled qubits is related to the problem of localization. Localization of single-excitation stationary states is well understood since Anderson’s work 关4兴 on diso ...
... However, it is not of a QNDM type, both the amplitude and the phase of the excitation wave function are changed. The problem of measuring coupled qubits is related to the problem of localization. Localization of single-excitation stationary states is well understood since Anderson’s work 关4兴 on diso ...
IOSR Journal of Applied Physics (IOSRJAP)
... the concept of the atom, as a fundamental building block of materials, in order to circumvent a paradox that arises with continuous elements (such as earth fire air and water). They pointed out that if matter was really a continuum then you could cut it into smaller and smaller pieces ad infinitum a ...
... the concept of the atom, as a fundamental building block of materials, in order to circumvent a paradox that arises with continuous elements (such as earth fire air and water). They pointed out that if matter was really a continuum then you could cut it into smaller and smaller pieces ad infinitum a ...
Quantum Nonequilibrium Dynamics: Transport, Entanglement, and Thermalization
... quantum spin chains are widely-used model systems to study quantum dynamics. In spite of their simple real-space structure, their quantum dynamics can show complex behaviors. Although not as perfect as three-dimensional cold gases in continuum space, one-dimensional quantum spin chains are also real ...
... quantum spin chains are widely-used model systems to study quantum dynamics. In spite of their simple real-space structure, their quantum dynamics can show complex behaviors. Although not as perfect as three-dimensional cold gases in continuum space, one-dimensional quantum spin chains are also real ...
8 Selectivity of the O e
... wave function c f , the nuclear current J m , and the twonucleon overlap integral c i . The derivation of Eq. ~7! involves bound and scattering states c i and c f which are consistently derived from an energy-dependent non-Hermitian Feshbach-type Hamiltonian for the considered final state of the res ...
... wave function c f , the nuclear current J m , and the twonucleon overlap integral c i . The derivation of Eq. ~7! involves bound and scattering states c i and c f which are consistently derived from an energy-dependent non-Hermitian Feshbach-type Hamiltonian for the considered final state of the res ...
Quantum Tweezer for Atoms
... atoms are left in it. Note that only one atom is allowed to leak out of the dot at each crossing with the ground state, due to the diminishing repulsion between atoms in the dot as there are less atoms in it (see Fig. 1). The next atom would have a chance of leaking to the condensate as the dot move ...
... atoms are left in it. Note that only one atom is allowed to leak out of the dot at each crossing with the ground state, due to the diminishing repulsion between atoms in the dot as there are less atoms in it (see Fig. 1). The next atom would have a chance of leaking to the condensate as the dot move ...
Particle in a box
In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers. The model is mainly used as a hypothetical example to illustrate the differences between classical and quantum systems. In classical systems, for example a ball trapped inside a large box, the particle can move at any speed within the box and it is no more likely to be found at one position than another. However, when the well becomes very narrow (on the scale of a few nanometers), quantum effects become important. The particle may only occupy certain positive energy levels. Likewise, it can never have zero energy, meaning that the particle can never ""sit still"". Additionally, it is more likely to be found at certain positions than at others, depending on its energy level. The particle may never be detected at certain positions, known as spatial nodes.The particle in a box model provides one of the very few problems in quantum mechanics which can be solved analytically, without approximations. This means that the observable properties of the particle (such as its energy and position) are related to the mass of the particle and the width of the well by simple mathematical expressions. Due to its simplicity, the model allows insight into quantum effects without the need for complicated mathematics. It is one of the first quantum mechanics problems taught in undergraduate physics courses, and it is commonly used as an approximation for more complicated quantum systems.