Spontaneously broken gauge symmetry in a Bose gas with constant
... analysed modelling the underlying complex valued fugacity spectrum, considering very weak (s-wave) interactions and non-classical correlations between the particles. The phase gauge symmetry breaking process is continuously monitored by switching the gas temperature from above the critical temperatu ...
... analysed modelling the underlying complex valued fugacity spectrum, considering very weak (s-wave) interactions and non-classical correlations between the particles. The phase gauge symmetry breaking process is continuously monitored by switching the gas temperature from above the critical temperatu ...
Quantum Degeneracy in Two Dimensional Systems
... However, with the increase of the value of a, the separate wells are developed having a large separation between them as seen from Figure 1. In fact, in a→∞ limit, since the system can have the equal probability to occupy in either of these harmonic oscillators right or left, then each of these boun ...
... However, with the increase of the value of a, the separate wells are developed having a large separation between them as seen from Figure 1. In fact, in a→∞ limit, since the system can have the equal probability to occupy in either of these harmonic oscillators right or left, then each of these boun ...
Quantum-information transport to multiple receivers
... where we have introduced the 共externally controlled兲 site energies, E, and ⍀S is the tunneling matrix element 共TME兲 along the bus, which is not varied during the protocol, ⍀A is the TME between A and 1 which Alice can control, while ⍀B j is the TME between B j and 2j − 1, and ci, is the annihilatio ...
... where we have introduced the 共externally controlled兲 site energies, E, and ⍀S is the tunneling matrix element 共TME兲 along the bus, which is not varied during the protocol, ⍀A is the TME between A and 1 which Alice can control, while ⍀B j is the TME between B j and 2j − 1, and ci, is the annihilatio ...
Quantum optimal control theory applied to transitions in
... spin angular momentum along the molecular axis. S and I are now assumed to be quantized along the molecular axis. F ≡ + + I and represents the projection of the total angular momentum along the molecular axis, whereas MF denotes the quantized component of F along a space fixed axis. S and I ...
... spin angular momentum along the molecular axis. S and I are now assumed to be quantized along the molecular axis. F ≡ + + I and represents the projection of the total angular momentum along the molecular axis, whereas MF denotes the quantized component of F along a space fixed axis. S and I ...
From Physics to Information Theory and Back - Philsci
... the frameworks developed, have interest even for those of us who are not of that conviction. Indeed, much of the recent work echoes, and builds upon, work that predates the inception of quantum information theory. The significance of such work extends beyond the setting of quantum information theory ...
... the frameworks developed, have interest even for those of us who are not of that conviction. Indeed, much of the recent work echoes, and builds upon, work that predates the inception of quantum information theory. The significance of such work extends beyond the setting of quantum information theory ...
Degradable Quantum Channels - Quantum Theory Group at CMU
... The rate of the code is given by R = n1 log dim H. A rate R is called achievable if for all > 0 and sufficiently large n there exists a code of rate R. The quantum capacity of the channel Q(N ) is the supremum of all achievable R. This is also called the subspace transmission capacity. • The entan ...
... The rate of the code is given by R = n1 log dim H. A rate R is called achievable if for all > 0 and sufficiently large n there exists a code of rate R. The quantum capacity of the channel Q(N ) is the supremum of all achievable R. This is also called the subspace transmission capacity. • The entan ...
Operator Theory and Dirac Notation
... can “point” in different directions as position and time vary. If we fix the time to one value or have a time-independent system, then the basis vectors are the position values x in one dimension. Dynamic variables (physical quantities of the motion like position, momentum, energy) have correspondin ...
... can “point” in different directions as position and time vary. If we fix the time to one value or have a time-independent system, then the basis vectors are the position values x in one dimension. Dynamic variables (physical quantities of the motion like position, momentum, energy) have correspondin ...
Quantum interference of a single spin excitation with a
... photon shot noise [22, 29], classical fluctuations in the atomic state initialization, and the noise from the 12 reference measurements (Appendix A: Technical fluctuations). These noise sources lead to an effective detection quantum efficiency of ηnoise = 50 % as indicated in Fig. 3. The non-perfect ...
... photon shot noise [22, 29], classical fluctuations in the atomic state initialization, and the noise from the 12 reference measurements (Appendix A: Technical fluctuations). These noise sources lead to an effective detection quantum efficiency of ηnoise = 50 % as indicated in Fig. 3. The non-perfect ...
Topic 13: Quantum and nuclear physics
... Back in the very early 1900s physicists thought that within a few years everything having to do with physics would be discovered and the “book of physics” would be complete. This “book of physics” has come to be known as classical physics and consists of particles and mechanics on the one hand, an ...
... Back in the very early 1900s physicists thought that within a few years everything having to do with physics would be discovered and the “book of physics” would be complete. This “book of physics” has come to be known as classical physics and consists of particles and mechanics on the one hand, an ...
PPT - Fernando Brandao
... (Zurek ’02; Blume-Kohout, Poulin, Riedel, Zwolak, ….) Objectivity of observables: Observers accessing a quantum system by proving part of its environment can only learn about the measurement of a preferred observer Objectivity of outcomes: Different observes accessing different parts of the environm ...
... (Zurek ’02; Blume-Kohout, Poulin, Riedel, Zwolak, ….) Objectivity of observables: Observers accessing a quantum system by proving part of its environment can only learn about the measurement of a preferred observer Objectivity of outcomes: Different observes accessing different parts of the environm ...
Probability in the Many-Worlds Interpretation of Quantum Mechanics
... The MWI yields: There is nothing but the wave function. Locality provides: Outcomes of local experiments depend only on local values of the wave function. Causality of relativistic quantum theory yields: Any action in a space-like separated region cannot influence an outcome of local experiment. Fro ...
... The MWI yields: There is nothing but the wave function. Locality provides: Outcomes of local experiments depend only on local values of the wave function. Causality of relativistic quantum theory yields: Any action in a space-like separated region cannot influence an outcome of local experiment. Fro ...
An Improved Quantum Algorithm for Searching an Ordered List
... Clearly, this oracle contains no more information than the one in (5), and can be easily constructed from the first. Using the oracle operator, all k-query algorithms which start in a state |s will end in a state Vk Fw Vk−1 Fw ...V1 Fw |s. ...
... Clearly, this oracle contains no more information than the one in (5), and can be easily constructed from the first. Using the oracle operator, all k-query algorithms which start in a state |s will end in a state Vk Fw Vk−1 Fw ...V1 Fw |s. ...
Heisenberg`s Uncertainty Principle
... and momentum. How we can qualitatively understand that the uncertainty principle is due to the wave nature of particles discuss relevant features of classical waves, e.g., the “incompatibility” of both well-defined “position” and “wavelength” for a wave on a string discuss the relation between ...
... and momentum. How we can qualitatively understand that the uncertainty principle is due to the wave nature of particles discuss relevant features of classical waves, e.g., the “incompatibility” of both well-defined “position” and “wavelength” for a wave on a string discuss the relation between ...
High performance quantum computing
... run on the client side. As the photon stream transmitted to the client is the 3D topological lattice generated by the mainframe, interrogation of the quantum channel is unnecessary as the state transmitted is globally known. Additionally, the only classical information sent between mainframe and use ...
... run on the client side. As the photon stream transmitted to the client is the 3D topological lattice generated by the mainframe, interrogation of the quantum channel is unnecessary as the state transmitted is globally known. Additionally, the only classical information sent between mainframe and use ...
Fisher information in quantum statistics
... a measurement M, over all measurements of the state. Thereby they supplied a new proof of Helstrom’s (1967) quantum Cramér-Rao bound: no unbiased estimator of θ, based on any measurement, has variance smaller than I(θ)−1 . Recall that the classical bound states that no unbiased estimator of θ based ...
... a measurement M, over all measurements of the state. Thereby they supplied a new proof of Helstrom’s (1967) quantum Cramér-Rao bound: no unbiased estimator of θ, based on any measurement, has variance smaller than I(θ)−1 . Recall that the classical bound states that no unbiased estimator of θ based ...
