progress in quantum foundations - Department of Computer Science
... Our scientific theories aim to accurately describe every phenomenon that can possibly occur in the world we live in. However, one can hope that a theory will not only explain all observable occurrences and predict new results, but will also convey an understanding of the inner workings of nature; an ...
... Our scientific theories aim to accurately describe every phenomenon that can possibly occur in the world we live in. However, one can hope that a theory will not only explain all observable occurrences and predict new results, but will also convey an understanding of the inner workings of nature; an ...
Quantum gases in optical lattices
... the same and does not fluctuate. How- (a) Controlled interactions between atoms on the lab. The ETH team has compared ever, this means that the phase coherence different lattice sites are possible with the help of the oscillation frequencies of an axial lattice potentials. In such a between atoms on ...
... the same and does not fluctuate. How- (a) Controlled interactions between atoms on the lab. The ETH team has compared ever, this means that the phase coherence different lattice sites are possible with the help of the oscillation frequencies of an axial lattice potentials. In such a between atoms on ...
Sunday 07 December Monday 08 December AIPC 2014 Conference Program (draft)
... unification theories ...
... unification theories ...
Elementary Particle Mixing for Maximum Channel Capacity in Measured Decays
... In recent years the physics of the implied ensemble has been worked out by quantum information theorists. Channel capacity has been defined as a measure of the number of accessibly distinguishable classical states, and shown to be computable using the Holevo bound [3, 4]. In this paper, we adopt the ...
... In recent years the physics of the implied ensemble has been worked out by quantum information theorists. Channel capacity has been defined as a measure of the number of accessibly distinguishable classical states, and shown to be computable using the Holevo bound [3, 4]. In this paper, we adopt the ...
C191 - Lectures 8 and 9 - Measurement in
... the system and the meter are brought into contact, they interact with one another. The experimentalist has chosen the meter and the coupling mechanism so that the evolution of the meter’s state is conditional on the state of the system. For a single qubit measured in the 0, 1 basis, this means that ...
... the system and the meter are brought into contact, they interact with one another. The experimentalist has chosen the meter and the coupling mechanism so that the evolution of the meter’s state is conditional on the state of the system. For a single qubit measured in the 0, 1 basis, this means that ...
Quantum Channel Construction with Circuit Quantum
... encoded quantum information from undesired decoherence processes [4–9]. Hence, it is important to systematically extend quantum control techniques from closed to open quantum systems. Theoretically, universal Lindbladian dynamics constructions have been investigated [10–12], which can be used for st ...
... encoded quantum information from undesired decoherence processes [4–9]. Hence, it is important to systematically extend quantum control techniques from closed to open quantum systems. Theoretically, universal Lindbladian dynamics constructions have been investigated [10–12], which can be used for st ...
Comment on “Quantum Monte Carlo Approach to Elementary
... to its thermodynamic limit [7], which set in for smaller L, as there are no additional end effects. So far, all authors agree that at the Heisenberg point the physics of S 1 and S 2 chains is fundamentally the same, so S 1 results should provide a useful guideline. This is why we argue that 1y ...
... to its thermodynamic limit [7], which set in for smaller L, as there are no additional end effects. So far, all authors agree that at the Heisenberg point the physics of S 1 and S 2 chains is fundamentally the same, so S 1 results should provide a useful guideline. This is why we argue that 1y ...
Dynamics of Quantum Many Body Systems Far From Thermal
... 1. From one side, as often happens in physics, what matters are the orders of magnitude of tipical time scales a system need to reach a quasi-equilibrium state compared to the time scales on which observation takes place. As a consequence, with a good degree of approximation, a macroscopic system ca ...
... 1. From one side, as often happens in physics, what matters are the orders of magnitude of tipical time scales a system need to reach a quasi-equilibrium state compared to the time scales on which observation takes place. As a consequence, with a good degree of approximation, a macroscopic system ca ...
Assessing the applicability of quantum corrections to classical
... behavior and material properties.1–3 As a general rule, MD simulations of solids are considered valid near and above a material’s Debye temperature, where all of the vibrational modes (i.e., phonons in a crystal) are fully excited. Molecular dynamics simulations are not valid at lower temperatures, ...
... behavior and material properties.1–3 As a general rule, MD simulations of solids are considered valid near and above a material’s Debye temperature, where all of the vibrational modes (i.e., phonons in a crystal) are fully excited. Molecular dynamics simulations are not valid at lower temperatures, ...
Quantum Manipulation of Two-Electron Spin States in
... system with a two-pulse procedure: one microsecond pulse that is varied over the dashed green rectangular region depicted in Fig. 2(b) and a fast fixed negative pulse to the gate L of 50 ns duration and of amplitude V ns equal to 80 mV; finally, we proceed to the spin measurement in bringing the sys ...
... system with a two-pulse procedure: one microsecond pulse that is varied over the dashed green rectangular region depicted in Fig. 2(b) and a fast fixed negative pulse to the gate L of 50 ns duration and of amplitude V ns equal to 80 mV; finally, we proceed to the spin measurement in bringing the sys ...
Exact quantum query complexity
... Many separations are known between quantum and classical query complexity. The Deutsch-Jozsa algorithm shows the existence of a partial function f (i.e. with a promise on the input) such that QE (f ) = O(1), but D(f ) = Ω(n). In fact, it is known that if f is a partial function we can have QE (f ) e ...
... Many separations are known between quantum and classical query complexity. The Deutsch-Jozsa algorithm shows the existence of a partial function f (i.e. with a promise on the input) such that QE (f ) = O(1), but D(f ) = Ω(n). In fact, it is known that if f is a partial function we can have QE (f ) e ...
Proposal for Implementing Device
... moved out of the black boxes. This means that the detectors are well characterized, that they have a known efficiency, and that the eavesdropper cannot tamper with them. In this case, a Bell violation can be observed independently of the detector efficiency d , and any local description is ruled ou ...
... moved out of the black boxes. This means that the detectors are well characterized, that they have a known efficiency, and that the eavesdropper cannot tamper with them. In this case, a Bell violation can be observed independently of the detector efficiency d , and any local description is ruled ou ...
Unit 3 Quantum Numbers PPT
... Light and Energy In 1900 Max Planck helped us move toward a better understanding of electromagnetic radiation. Matter can gain or lose energy only in small, specific amounts called quanta. ...
... Light and Energy In 1900 Max Planck helped us move toward a better understanding of electromagnetic radiation. Matter can gain or lose energy only in small, specific amounts called quanta. ...
A Priori Probability and Localized Observers
... well-nigh incomprehensible at first sight. It seems to me, therefore, that it is worthwhile trying to discuss separately possible postulates for potential interpretations. Despite its incompleteness, it may well appear that this paper rapidly becomes swamped by a welter of abstract technical detail ...
... well-nigh incomprehensible at first sight. It seems to me, therefore, that it is worthwhile trying to discuss separately possible postulates for potential interpretations. Despite its incompleteness, it may well appear that this paper rapidly becomes swamped by a welter of abstract technical detail ...
The many-worlds interpretation of quantum - Philsci
... But the main thrust of the paper is that whatever such ...
... But the main thrust of the paper is that whatever such ...
Quantum Computation: a Tutorial
... The gate Vθ does not change the vector |0i but sends |1i to eθi |1i. Z is just Vπ . Unitaries are only rotating the state of the quantum system. In order to get some classical information out, the only available operation is the measurement. It is a probabilistic operation defined as follows: if u = ...
... The gate Vθ does not change the vector |0i but sends |1i to eθi |1i. Z is just Vπ . Unitaries are only rotating the state of the quantum system. In order to get some classical information out, the only available operation is the measurement. It is a probabilistic operation defined as follows: if u = ...