Ultracold Atoms in Artificial Gauge Fields by Tobias Graß PhD Thesis
... The pioneering 2002 experiment realized the Bose-Hubbard model [8], in which bosonic particles hop between neighboring sites of a hypercubic lattice, and interact locally on each site. The model describes a competition between these two processes, whose energies are quantified by the hopping amplitu ...
... The pioneering 2002 experiment realized the Bose-Hubbard model [8], in which bosonic particles hop between neighboring sites of a hypercubic lattice, and interact locally on each site. The model describes a competition between these two processes, whose energies are quantified by the hopping amplitu ...
entangled photon pairs: efficient generation and detection, and bit
... Bit commitment is a two-party protocol that can be used as a cryptographic primitive for tasks like secure identification. Secure bit commitment was thought to be impossible [1]. Nevertheless, we experimentally implemented a secure protocol for bit commitment by measurements on polarization-entangle ...
... Bit commitment is a two-party protocol that can be used as a cryptographic primitive for tasks like secure identification. Secure bit commitment was thought to be impossible [1]. Nevertheless, we experimentally implemented a secure protocol for bit commitment by measurements on polarization-entangle ...
1 Spin Transfer Torque Generated by the Topological
... An independent measurement confirming the value of σ S , ⊥ can be obtained by measuring the current-induced shift of the ST-FMR resonant field (see Supplementary Information). Current-induced changes in the ST-FMR resonance width have been used previously as an alternative method to measure σ S,|| 2 ...
... An independent measurement confirming the value of σ S , ⊥ can be obtained by measuring the current-induced shift of the ST-FMR resonant field (see Supplementary Information). Current-induced changes in the ST-FMR resonance width have been used previously as an alternative method to measure σ S,|| 2 ...
Spin and Charge Transport through Driven Quantum Dot Systems
... systems provides information on their energy distribution and gives the opportunity to coherently excite internal transitions. This changed drastically when in 1980 the first measurements of the quantum Hall effect in two dimensional electron gases in semiconductor structures were reported[1]. There ...
... systems provides information on their energy distribution and gives the opportunity to coherently excite internal transitions. This changed drastically when in 1980 the first measurements of the quantum Hall effect in two dimensional electron gases in semiconductor structures were reported[1]. There ...
Measurements in Proof Nets as Higher
... computational power—at least for some classes of problems, such as the integer factorization problem (Shor’s algorithm) and search problems. While it is often disputed if quantum computation is physically realizable, quantum communication is close to actual deployment in real-world applications. By ...
... computational power—at least for some classes of problems, such as the integer factorization problem (Shor’s algorithm) and search problems. While it is often disputed if quantum computation is physically realizable, quantum communication is close to actual deployment in real-world applications. By ...
Quantum Computing
... The following lecture notes are based on the book Quantum Computation and Quantum Information by Michael A. Nielsen and Isaac L. Chuang. They are for a math-based quantum computing course that I teach here at the University of Washington to computer science graduate students (with advanced undergrad ...
... The following lecture notes are based on the book Quantum Computation and Quantum Information by Michael A. Nielsen and Isaac L. Chuang. They are for a math-based quantum computing course that I teach here at the University of Washington to computer science graduate students (with advanced undergrad ...
Definition of the spin current: The angular spin current and its
... charge current density ជj e共r , t兲 = Re关⌿†共r , t兲evជ ⌿共r , t兲兴 and its continuity equation 共d / dt兲e共r , t兲 + · ជj e共r , t兲 = 0 is well known in physics. Here ⌿共r , t兲 is the electronic wave function, vជ = ṙ is the velocity operator, and e共r , t兲 = e⌿†⌿ is the charge density. This continuity eq ...
... charge current density ជj e共r , t兲 = Re关⌿†共r , t兲evជ ⌿共r , t兲兴 and its continuity equation 共d / dt兲e共r , t兲 + · ជj e共r , t兲 = 0 is well known in physics. Here ⌿共r , t兲 is the electronic wave function, vជ = ṙ is the velocity operator, and e共r , t兲 = e⌿†⌿ is the charge density. This continuity eq ...
Lecture, Week 1: September 27th - October 3rd, 1999 Outline 1
... description of gravity, which in the atomic realm is much weaker than the other forces. Another odd feature of quantum particle/waves is quantum entanglement. If two quantum partices are coupled but then go their separate ways, they remain somehow connected over space and time. Measurement of one wi ...
... description of gravity, which in the atomic realm is much weaker than the other forces. Another odd feature of quantum particle/waves is quantum entanglement. If two quantum partices are coupled but then go their separate ways, they remain somehow connected over space and time. Measurement of one wi ...
ןב תטיסרבינוא - בגנב ןוירוג
... polarizations are tunable by these fields, and do not depend on the energy of the scattered electrons. Moreover, when the spin filtering conditions are obeyed, one can tune the interferometer parameters (site and hopping energies) so that the transmission of the fully polarized electrons is close t ...
... polarizations are tunable by these fields, and do not depend on the energy of the scattered electrons. Moreover, when the spin filtering conditions are obeyed, one can tune the interferometer parameters (site and hopping energies) so that the transmission of the fully polarized electrons is close t ...
Interaction and confinement in nanostructures: Spin
... dream of quantum computation. The above examples are well described in an effective single-particle model which treats the electrons (or Cooper pairs as in case of the Josephson junction) as non-interacting particles. However, this picture has some limitations. For instance, the coherent oscillation ...
... dream of quantum computation. The above examples are well described in an effective single-particle model which treats the electrons (or Cooper pairs as in case of the Josephson junction) as non-interacting particles. However, this picture has some limitations. For instance, the coherent oscillation ...
New perspectives for Rashba spin–orbit coupling
... experiment, particles that possess opposite magnetic moment are deflected towards opposite directions by a gradient in the magnetic field. In ref. 34, a spatial gradient of the effective magnetic field due to the Rashba SO coupling is shown to cause a spin separation. Almost 100% spin polarization c ...
... experiment, particles that possess opposite magnetic moment are deflected towards opposite directions by a gradient in the magnetic field. In ref. 34, a spatial gradient of the effective magnetic field due to the Rashba SO coupling is shown to cause a spin separation. Almost 100% spin polarization c ...