Solving Critical Section problem in Distributed system by Entangled Quantum bits
... desirable that users at isolated groups update the database independently. If a node is to perform updates, it must ensure that no other node (in any group, whatsoever) is doing this activity. Thus, mutual exclusion is needed for updating files in replicated databases. Protocols that control access ...
... desirable that users at isolated groups update the database independently. If a node is to perform updates, it must ensure that no other node (in any group, whatsoever) is doing this activity. Thus, mutual exclusion is needed for updating files in replicated databases. Protocols that control access ...
Physics 139B Solutions to Homework Set 4 Fall 2009 1. Liboff
... In case (b), there are no first-order transitions from the ground state to excited states of the oscillator with quantum number k ≥ 2. This is a consequence of eq. (19), which indicates that h0| x |ki = 0 for k ≥ 2. However, when higher orders of perturbation theory are taken into account, one does ...
... In case (b), there are no first-order transitions from the ground state to excited states of the oscillator with quantum number k ≥ 2. This is a consequence of eq. (19), which indicates that h0| x |ki = 0 for k ≥ 2. However, when higher orders of perturbation theory are taken into account, one does ...
Scattering theory - Theory of Condensed Matter
... a loosely bound pair, whose size can become comparable to or even larger than the average distance between particles. A Bose-Einstein condensate of these fragile pairs is called a “BCS-state”, after Bardeen, Cooper and Schrieffer. This is what occurs in superconductors, in which current flows withou ...
... a loosely bound pair, whose size can become comparable to or even larger than the average distance between particles. A Bose-Einstein condensate of these fragile pairs is called a “BCS-state”, after Bardeen, Cooper and Schrieffer. This is what occurs in superconductors, in which current flows withou ...
common-sense realism and - Philsci
... Fraassen would want to admit the possibility that common-sense realism is false, but one can also gather reasons to think that van Fraassen wants to take common-sense realism as an unrevisable aspect of his epistemology. Here is evidence that van Fraassen would admit the possibility that common-sens ...
... Fraassen would want to admit the possibility that common-sense realism is false, but one can also gather reasons to think that van Fraassen wants to take common-sense realism as an unrevisable aspect of his epistemology. Here is evidence that van Fraassen would admit the possibility that common-sens ...
Fractional quantum Hall effect in optical lattices
... of the system being used to realize the effect, we also study a number of questions which are of particular interest to experimental efforts toward realizing the effect with atoms in optical lattices. In particular, we show that adding dipole interactions between the atoms can be used to increase th ...
... of the system being used to realize the effect, we also study a number of questions which are of particular interest to experimental efforts toward realizing the effect with atoms in optical lattices. In particular, we show that adding dipole interactions between the atoms can be used to increase th ...
Structures as the objects of fundamental physics
... pessimistic induction – that is, the claim that since most of our past scientific theories have turned out to be false, it is likely that our present and future scientific theories will endure the same fate – and the no miracle argument, that is, the claim that the predictive success of our scientif ...
... pessimistic induction – that is, the claim that since most of our past scientific theories have turned out to be false, it is likely that our present and future scientific theories will endure the same fate – and the no miracle argument, that is, the claim that the predictive success of our scientif ...
Proposal - MURI on FIND
... Theme One - Quench dynamics: A powerful technique for generating far from equilibrium states is to “quench” a system, changing its properties faster than the microscopic response times. Such quenches are ubiquitous, even occurring in the early universe, and can drive transport. We will explore the u ...
... Theme One - Quench dynamics: A powerful technique for generating far from equilibrium states is to “quench” a system, changing its properties faster than the microscopic response times. Such quenches are ubiquitous, even occurring in the early universe, and can drive transport. We will explore the u ...
Measurement and assignment of the size-dependent
... background. In addition, since PLE represents a combination of absorption and emission behavior, a detailed knowledge of the emission quantum yield for each transition would be required to quantify the absorption strength of the states observed in PLE.19 The final results of the fitting procedure fo ...
... background. In addition, since PLE represents a combination of absorption and emission behavior, a detailed knowledge of the emission quantum yield for each transition would be required to quantify the absorption strength of the states observed in PLE.19 The final results of the fitting procedure fo ...
Exponential algorithmic speedup by quantum walk Andrew M. Childs, Richard Cleve, Enrico Deotto,
... At each vertex, we query the oracle and move to one of the two unvisited adjacent vertices. After n steps, we reach the central column and then proceed moving to unvisited adjacent vertices in the right tree, checking the degree at each step. If we discover that after k steps we are again at a centr ...
... At each vertex, we query the oracle and move to one of the two unvisited adjacent vertices. After n steps, we reach the central column and then proceed moving to unvisited adjacent vertices in the right tree, checking the degree at each step. If we discover that after k steps we are again at a centr ...
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Nova Layout [7x10] - Institut Laue
... mechanics which allows an analytic solution involving special functions known as Airy functions. The solutions of the corresponding Schrödinger equation with linear potential were discovered in 1920th [1] and can be found in major textbooks on quantum mechanics [2–7]. For a long time, this problem w ...
... mechanics which allows an analytic solution involving special functions known as Airy functions. The solutions of the corresponding Schrödinger equation with linear potential were discovered in 1920th [1] and can be found in major textbooks on quantum mechanics [2–7]. For a long time, this problem w ...
Non-exponential and oscillatory decays in quantum mechanics
... No quantum-mechanical counterpart of Eqs. (1) with constant Γ is valid at all times. Many authors [2–15] have emphasized the generally non-exponential nature of decay laws in quantum mechanics, along with the problems of experimental observation of deviations from a pure exponential decay. The discu ...
... No quantum-mechanical counterpart of Eqs. (1) with constant Γ is valid at all times. Many authors [2–15] have emphasized the generally non-exponential nature of decay laws in quantum mechanics, along with the problems of experimental observation of deviations from a pure exponential decay. The discu ...
Phys. Chem. Chem. Phys. 14, 9411-20
... as qubits, and are manipulated and read-out by an NMR spectrometer.24 Although the NMR system may be limited to only few tens of qubits, it has produced a wealth of information and provided a testing platform for experimental realizations of many proposed schemes.25,26 Quantum linear optics. This i ...
... as qubits, and are manipulated and read-out by an NMR spectrometer.24 Although the NMR system may be limited to only few tens of qubits, it has produced a wealth of information and provided a testing platform for experimental realizations of many proposed schemes.25,26 Quantum linear optics. This i ...
Quantum-Secure Message Authentication Codes
... as the polynomial method [BBC+ 01] and the adversary method [Amb00, Aar02, Amb06, ASdW09] do not give the result we need. One difficulty with existing lower bound techniques is that they generally prove asymptotic bounds on the number of queries required to solve a problem with high probability. How ...
... as the polynomial method [BBC+ 01] and the adversary method [Amb00, Aar02, Amb06, ASdW09] do not give the result we need. One difficulty with existing lower bound techniques is that they generally prove asymptotic bounds on the number of queries required to solve a problem with high probability. How ...
appendix 2 - School of Physics
... respect to the concept of uncertainty. The concept label provided to the students was ‘Uncertainty Principle’, the way students used this label on their maps fell into three groups. The first group (5 maps) did not link uncertainty to their map of quantum mechanics. Either the label did not appear o ...
... respect to the concept of uncertainty. The concept label provided to the students was ‘Uncertainty Principle’, the way students used this label on their maps fell into three groups. The first group (5 maps) did not link uncertainty to their map of quantum mechanics. Either the label did not appear o ...
Phys. Rev. Lett
... has been carried out by exploiting the process of parametric down-conversion [5,6] and has also been utilized in few quantum-information protocols [7–10]. Despite these successes, the optical tools for generating and controlling the OAM photon states (computer-generated holograms, Dove’s prisms, cyl ...
... has been carried out by exploiting the process of parametric down-conversion [5,6] and has also been utilized in few quantum-information protocols [7–10]. Despite these successes, the optical tools for generating and controlling the OAM photon states (computer-generated holograms, Dove’s prisms, cyl ...
Quantum vortices in a glass of Bose
... textbooks of fluid dynamics (see e.g. [5]). Surprinsingly, although vortices in Becs have been extensively studied, some of the most simple Gendankenexperiments have yet to be studied. In [6] for example, the (apparently) simple problem of the motion of a single vortex along a plane boundary in a se ...
... textbooks of fluid dynamics (see e.g. [5]). Surprinsingly, although vortices in Becs have been extensively studied, some of the most simple Gendankenexperiments have yet to be studied. In [6] for example, the (apparently) simple problem of the motion of a single vortex along a plane boundary in a se ...
PDF: Aspden et al 2016 b
... beyond considerations of measurement-induced perturbations and is rooted in an inherent uncertainty associated with the particle itself. In terms of the philosophical debate, rather than the “which slit” question it is the mechanism by which the extended photon wavefunction is collapsed (or projecte ...
... beyond considerations of measurement-induced perturbations and is rooted in an inherent uncertainty associated with the particle itself. In terms of the philosophical debate, rather than the “which slit” question it is the mechanism by which the extended photon wavefunction is collapsed (or projecte ...
Bounding the quantum dimension with contextuality Linköping University Post Print
... as lower bounds on the complexity and the number of levels accessed by the measurement devices: If the measurement operators act nontrivially only on a small subspace, then all measurements results can be modeled by using a lowdimensional quantum system only. Note that this is not directly related t ...
... as lower bounds on the complexity and the number of levels accessed by the measurement devices: If the measurement operators act nontrivially only on a small subspace, then all measurements results can be modeled by using a lowdimensional quantum system only. Note that this is not directly related t ...
