Spin and Charge in Semiconductor Nanowires
... 6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Discrete energy spectrum due to environment . . . . . . . . . . . 6.3 Quantized energy spectrum for different bias directions . . . . . . 6.4 Quantization independent of magnetic field . . . . . . . . . . . . . 6.5 Quan ...
... 6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Discrete energy spectrum due to environment . . . . . . . . . . . 6.3 Quantized energy spectrum for different bias directions . . . . . . 6.4 Quantization independent of magnetic field . . . . . . . . . . . . . 6.5 Quan ...
"Loop Quantum Gravity" (Rovelli)
... order to take into account what we have learned with both our present "fundamental" theories. The difference between the formulation of the problem of quantum gravity given by a highenergy physicist and a relativist derives therefore from a different evaluation of general relativity. For the first, ...
... order to take into account what we have learned with both our present "fundamental" theories. The difference between the formulation of the problem of quantum gravity given by a highenergy physicist and a relativist derives therefore from a different evaluation of general relativity. For the first, ...
Lecture 2: Electronics and Mechanics on the Nanometer Scale
... degrees of freedom present in the solid. Even though such interactions may be relatively weak they could produce a significant effect on a large enough time scale. The interactions cause dissipation of the mechanical energy and stochastic deviations from the otherwise regular mechanical vibrations ( ...
... degrees of freedom present in the solid. Even though such interactions may be relatively weak they could produce a significant effect on a large enough time scale. The interactions cause dissipation of the mechanical energy and stochastic deviations from the otherwise regular mechanical vibrations ( ...
On the Dipole Approximation
... to a consistent theory without ambiguities or vague formulations. The ultimate goal is to explain each process in every detail. This aspiration is however extremely ambitious – even for systems with very few particles it is currently often impossible to describe the behaviour exactly. Therefore phys ...
... to a consistent theory without ambiguities or vague formulations. The ultimate goal is to explain each process in every detail. This aspiration is however extremely ambitious – even for systems with very few particles it is currently often impossible to describe the behaviour exactly. Therefore phys ...
Lecture, Week 1: September 27th - October 3rd, 1999 Outline 1
... effects are approached through quantum mechanics, a branch of physics developed in the early 1900's by Niels Bohr of Denmark, Erwin Schrodinger of Austria, and Werner Heisenberg of Germany.Quantum mechanics explains how atoms absorb and give off units of energy called quanta. Surprisingly, quanta ac ...
... effects are approached through quantum mechanics, a branch of physics developed in the early 1900's by Niels Bohr of Denmark, Erwin Schrodinger of Austria, and Werner Heisenberg of Germany.Quantum mechanics explains how atoms absorb and give off units of energy called quanta. Surprisingly, quanta ac ...
Universal quantum simulation with prethreshold superconducting qubits: Single-excitation subspace method
... with i = 1,2, . . . ,n. We call the set of |i) the SES basis states. It is simple to prepare the quantum computer in an SES basis state from the ground state |00 · · · 0, and it will remain there with high probability if the following conditions are satisfied: (1) The coupling strengths |gii | ar ...
... with i = 1,2, . . . ,n. We call the set of |i) the SES basis states. It is simple to prepare the quantum computer in an SES basis state from the ground state |00 · · · 0, and it will remain there with high probability if the following conditions are satisfied: (1) The coupling strengths |gii | ar ...
Marblestone, Devoret..
... The senders’ possessed bits x0 , x1 , . . . , x N −1 are called input bits for short. Receiver: There is one receiver, Olga. Linear, unidirectional communication bus: As shown in Fig. 1, each sender may upload one single bit (vertical lines) to each of a fixed number m of separate single-bit channel ...
... The senders’ possessed bits x0 , x1 , . . . , x N −1 are called input bits for short. Receiver: There is one receiver, Olga. Linear, unidirectional communication bus: As shown in Fig. 1, each sender may upload one single bit (vertical lines) to each of a fixed number m of separate single-bit channel ...
Implementing Qubits with Superconducting Integrated Circuits Michel H. Devoret and John M. Martinis
... the capacitor must be represented by a wave function giving the probability amplitude of all charge configurations. For example, the charge on the capacitor can be in a superposition of states where the charge is both positive and negative at the same time. Similarly the current in a loop might be flo ...
... the capacitor must be represented by a wave function giving the probability amplitude of all charge configurations. For example, the charge on the capacitor can be in a superposition of states where the charge is both positive and negative at the same time. Similarly the current in a loop might be flo ...
dagrep_v005_i004_p123_s15181. - DROPS
... pGCL. Besides the usual language constructs in Dijkstra’s GCL such as non-deterministic choice, it features a probabilistic choice where the probability distribution may be parametric. For instance, the assignment x += 1 [p] skip increments the variable x by one with probability p, and keeps the val ...
... pGCL. Besides the usual language constructs in Dijkstra’s GCL such as non-deterministic choice, it features a probabilistic choice where the probability distribution may be parametric. For instance, the assignment x += 1 [p] skip increments the variable x by one with probability p, and keeps the val ...
Spin Foam Models of Quantum Spacetime
... model, and, in the 4-dimensional case, which is our main concern, on the BarrettCrane model, based on a simplicial formulation of gravity, and on the Lorentz group as symmetry group, both in its Riemannian and Lorentzian formulations, which is currently the most promising model among the proposed o ...
... model, and, in the 4-dimensional case, which is our main concern, on the BarrettCrane model, based on a simplicial formulation of gravity, and on the Lorentz group as symmetry group, both in its Riemannian and Lorentzian formulations, which is currently the most promising model among the proposed o ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: