Design and proof of concept for silicon-based quantum dot
... A second type of leakage error for spin qubits is associated with electron tunneling. The number of electrons per dot must remain fixed. In our device, the same gates that control the electron positions and the exchange coupling can also raise or lower the energy of the quantum well with respect to ...
... A second type of leakage error for spin qubits is associated with electron tunneling. The number of electrons per dot must remain fixed. In our device, the same gates that control the electron positions and the exchange coupling can also raise or lower the energy of the quantum well with respect to ...
Two types of proton-electron atoms in a vacuum and an
... It is obvious that in our model the radius re of the circular motion of a point electron is not related to its structure. Historically, the term “classical electron radius” for the value re was introduced in classical electrodynamics of an extended electron using the idea of its electromagnetic mome ...
... It is obvious that in our model the radius re of the circular motion of a point electron is not related to its structure. Historically, the term “classical electron radius” for the value re was introduced in classical electrodynamics of an extended electron using the idea of its electromagnetic mome ...
Hidden symmetries in the energy levels of excitonic `artificial atoms`
... sample heating under optical excitation, the structures are held in superfluid helium at about 1.2 K. After dispersion by a monochromator, the emission is detected by a CCD (charge-coupled device) camera. ...
... sample heating under optical excitation, the structures are held in superfluid helium at about 1.2 K. After dispersion by a monochromator, the emission is detected by a CCD (charge-coupled device) camera. ...
- Lancaster EPrints
... electronic structures and, as such, theoretical measures of covalency based on different premises can lead to qualitatively different conclusions [1]: In particular, the strong deviation from an independent particle approximation in these strongly-correlated systems can lead to consistent, but appar ...
... electronic structures and, as such, theoretical measures of covalency based on different premises can lead to qualitatively different conclusions [1]: In particular, the strong deviation from an independent particle approximation in these strongly-correlated systems can lead to consistent, but appar ...
Quantization of Mechanical Motion
... Wave Function Since a measurement on a given quantum object has no deterministic result, the only way to describe it is to introduce the probability to find a specific value of a physical variable in a large set of results of identical measurements. This information is addressed by the introduction ...
... Wave Function Since a measurement on a given quantum object has no deterministic result, the only way to describe it is to introduce the probability to find a specific value of a physical variable in a large set of results of identical measurements. This information is addressed by the introduction ...
Magnetically Induced Reconstruction of the Ground State in a Few-Electron...
... to the gate Cg is not necessarily a constant, but depends on the particular distribution of electron density inside the dot. In order for a peak to shift by 1 mV, only a small p p change DCg 兾Cg 艐 DVg 兾Vg , 0.2% is required. The most unexpected and surprising result is the appearance of states with ...
... to the gate Cg is not necessarily a constant, but depends on the particular distribution of electron density inside the dot. In order for a peak to shift by 1 mV, only a small p p change DCg 兾Cg 艐 DVg 兾Vg , 0.2% is required. The most unexpected and surprising result is the appearance of states with ...
Localization transition in a ballistic quantum wire
... The precise line shape of GT共B兲 gives the microscopic properties of the many-body states involved in the tunneling process: A realistic, finite size junction gives rise to fringes accompanying the ␦-function peaks of ⌿共k兲.7 When a wire localizes, ⌿共k兲 changes significantly and becomes spread-out in ...
... The precise line shape of GT共B兲 gives the microscopic properties of the many-body states involved in the tunneling process: A realistic, finite size junction gives rise to fringes accompanying the ␦-function peaks of ⌿共k兲.7 When a wire localizes, ⌿共k兲 changes significantly and becomes spread-out in ...
Phys. Rev. Lett. 100, 044106(1-4) - APS Link Manager
... leads to macroscopic irreversibility and entropy growth even if dynamical equations of motion are time reversible. This contradiction was pointed out by Loschmidt and is now known as the Loschmidt paradox [1]. The reply of Boltzmann relied on the technical difficulty of velocity reversal for materia ...
... leads to macroscopic irreversibility and entropy growth even if dynamical equations of motion are time reversible. This contradiction was pointed out by Loschmidt and is now known as the Loschmidt paradox [1]. The reply of Boltzmann relied on the technical difficulty of velocity reversal for materia ...
Atomic orbital
An atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus. The term may also refer to the physical region or space where the electron can be calculated to be present, as defined by the particular mathematical form of the orbital.Each orbital in an atom is characterized by a unique set of values of the three quantum numbers n, ℓ, and m, which respectively correspond to the electron's energy, angular momentum, and an angular momentum vector component (the magnetic quantum number). Any orbital can be occupied by a maximum of two electrons, each with its own spin quantum number. The simple names s orbital, p orbital, d orbital and f orbital refer to orbitals with angular momentum quantum number ℓ = 0, 1, 2 and 3 respectively. These names, together with the value of n, are used to describe the electron configurations of atoms. They are derived from the description by early spectroscopists of certain series of alkali metal spectroscopic lines as sharp, principal, diffuse, and fundamental. Orbitals for ℓ > 3 continue alphabetically, omitting j (g, h, i, k, …).Atomic orbitals are the basic building blocks of the atomic orbital model (alternatively known as the electron cloud or wave mechanics model), a modern framework for visualizing the submicroscopic behavior of electrons in matter. In this model the electron cloud of a multi-electron atom may be seen as being built up (in approximation) in an electron configuration that is a product of simpler hydrogen-like atomic orbitals. The repeating periodicity of the blocks of 2, 6, 10, and 14 elements within sections of the periodic table arises naturally from the total number of electrons that occupy a complete set of s, p, d and f atomic orbitals, respectively.