Experimental Implementation of Adiabatic Passage between
... transitions (QPTs) [1–3]. The discovery of the fractional quantum Hall (FQH) effect [4] indicates the existence of an exotic state of matter termed topological orders [5], which are beyond the usual symmetry description. This type of order has some interesting properties, such as robust ground state ...
... transitions (QPTs) [1–3]. The discovery of the fractional quantum Hall (FQH) effect [4] indicates the existence of an exotic state of matter termed topological orders [5], which are beyond the usual symmetry description. This type of order has some interesting properties, such as robust ground state ...
TiberCAD: towards multiscale simulation of optoelectronic devices
... All PDE based models are discretized by means of the finite element method (FEM) using the Fermi levels as variables! (in contrast to conventional approaches which us box integration and densities as variables) ill-conditioned Jacobian as the diffusion coefficients in the linearized continuity e ...
... All PDE based models are discretized by means of the finite element method (FEM) using the Fermi levels as variables! (in contrast to conventional approaches which us box integration and densities as variables) ill-conditioned Jacobian as the diffusion coefficients in the linearized continuity e ...
Czech Technical University in Prague Faculty of Electrical
... quantum physics. Quantum computing can be seen as a special intermediate case between digital and real analog computing. Importantly, there is a threshold theorem for error correction, as opposed to the pure analog case. Alternatively, quantum computing can be viewed as generalized probabilistic com ...
... quantum physics. Quantum computing can be seen as a special intermediate case between digital and real analog computing. Importantly, there is a threshold theorem for error correction, as opposed to the pure analog case. Alternatively, quantum computing can be viewed as generalized probabilistic com ...
Entanglement with Negative Wigner Function of Almost 3000 Atoms
... odd terms to zero, and display the resulting density matrix and corresponding Wigner function in Fig. 3b–d. The spin distributions f(Sb) obtained from this density matrix are shown in Fig. 2e–h. In order to quantify the minimum number of mutually entangled atoms, we use a criterion derived in ref. 1 ...
... odd terms to zero, and display the resulting density matrix and corresponding Wigner function in Fig. 3b–d. The spin distributions f(Sb) obtained from this density matrix are shown in Fig. 2e–h. In order to quantify the minimum number of mutually entangled atoms, we use a criterion derived in ref. 1 ...
ptt-file - Parmenides Foundation
... The same network may allow for different “distance structures” (metrical structures) For a society of people we can define “distance” according to: • physical distance • friendship distance • communication distance (two people making a phone call are “close” to each other with respect to this distan ...
... The same network may allow for different “distance structures” (metrical structures) For a society of people we can define “distance” according to: • physical distance • friendship distance • communication distance (two people making a phone call are “close” to each other with respect to this distan ...
Balanced homodyne detection with high common mode rejection
... 16. “Photodiode characteristics and applications,” http://www.osioptoelectronics.com/application-notes/ANPhotodiode-Parameters-Characteristics.pdf. ...
... 16. “Photodiode characteristics and applications,” http://www.osioptoelectronics.com/application-notes/ANPhotodiode-Parameters-Characteristics.pdf. ...
Topics in Applied Physics Volume 115
... in ultrascaled electronics devices is also an important means to exploit further the ingenuities of modern microelectronics. Single-atom electronics has been already observed and charge-transport manipulation using the spin degree of freedom is being actively pursued by different research teams. The ...
... in ultrascaled electronics devices is also an important means to exploit further the ingenuities of modern microelectronics. Single-atom electronics has been already observed and charge-transport manipulation using the spin degree of freedom is being actively pursued by different research teams. The ...
Initial Conditions from Inflation
... oscillators. In §6.3, we therefore review the canonical quantisation of a simple harmonic oscillator in quantum mechanics. In particular, we compute the variance of the oscillator amplitude induced by zero-point fluctuations in the ground state. In §6.4, we apply the same techniques to the quantisat ...
... oscillators. In §6.3, we therefore review the canonical quantisation of a simple harmonic oscillator in quantum mechanics. In particular, we compute the variance of the oscillator amplitude induced by zero-point fluctuations in the ground state. In §6.4, we apply the same techniques to the quantisat ...
Effective Quantum Spin Systems with Trapped Ions
... and cooled very efficiently, and therefore they can be stored at fixed positions [14]. Furthermore, their internal states can be precisely manipulated using lasers, and measured with basically 100% efficiency [15]. Our proposal, thus, would make it feasible to study quantum phase transitions in this ...
... and cooled very efficiently, and therefore they can be stored at fixed positions [14]. Furthermore, their internal states can be precisely manipulated using lasers, and measured with basically 100% efficiency [15]. Our proposal, thus, would make it feasible to study quantum phase transitions in this ...
The Strength of the Weak: The Uncertainty Principle and
... Since it was outlined by Werner Heisenberg in 1927, the ‘uncertainty principle’ has been a foundational part of quantum mechanics. This paper considers the uncertainty relations and discusses ‘weak measurements’: measurements that give approximate results for the relevant observable such that the wa ...
... Since it was outlined by Werner Heisenberg in 1927, the ‘uncertainty principle’ has been a foundational part of quantum mechanics. This paper considers the uncertainty relations and discusses ‘weak measurements’: measurements that give approximate results for the relevant observable such that the wa ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).