Decoherence in Solid State Qubits
... Interaction of solid state qubits with environmental degrees of freedom strongly affects the qubit dynamics, and leads to decoherence. In quantum information processing with solid state qubits, decoherence significantly limits the performances of such devices. Therefore, it is necessary to fully und ...
... Interaction of solid state qubits with environmental degrees of freedom strongly affects the qubit dynamics, and leads to decoherence. In quantum information processing with solid state qubits, decoherence significantly limits the performances of such devices. Therefore, it is necessary to fully und ...
Full paper
... and left circulating traveling waves in the ring cavity. The BS and PS also act as a measurement apparatus for the outgoing modes, sending all antisymmetric modes into the detector D. This is so because antisymmetric modes of the cavity are constructed from right and left circulating beams with a ...
... and left circulating traveling waves in the ring cavity. The BS and PS also act as a measurement apparatus for the outgoing modes, sending all antisymmetric modes into the detector D. This is so because antisymmetric modes of the cavity are constructed from right and left circulating beams with a ...
Asymptotic distribution of eigenvalues of Laplace operator
... Density of states is just the value of derivation of the number of states in some point. We use it to obtain entropy of ideal gas. The important point is that entropy is function of: ...
... Density of states is just the value of derivation of the number of states in some point. We use it to obtain entropy of ideal gas. The important point is that entropy is function of: ...
Mechanical Proof of the Second Law of Thermodynamics Based on
... field is acted in such a way as to drive the system out of equilibrium (non quasi static process) the entropy will increase. If it is acted in such a way that the system will remain arbitrary close to equilibrium (quasi static process) then the entropy will not change. Indeed the volume entropy alre ...
... field is acted in such a way as to drive the system out of equilibrium (non quasi static process) the entropy will increase. If it is acted in such a way that the system will remain arbitrary close to equilibrium (quasi static process) then the entropy will not change. Indeed the volume entropy alre ...
Document
... Today, the wavelike properties of beams of electrons are useful in viewing objects that cannot be viewed with an optical microscope. • The electrons in an electron microscope have much smaller wavelengths than visible light. • These smaller wavelengths allow a much clearer enlarged image of a very s ...
... Today, the wavelike properties of beams of electrons are useful in viewing objects that cannot be viewed with an optical microscope. • The electrons in an electron microscope have much smaller wavelengths than visible light. • These smaller wavelengths allow a much clearer enlarged image of a very s ...
PHYSICS 430 Lecture Notes on Quantum Mechanics
... be stationary. Let us therefore introduce a very important expression, crucial in both classical and quantum physics, which is known as the ”action” of the trajectory. The action is a function which depends on all the points {xn }, n = 0, 1, ..., N of the trajectory, and in this case it is ...
... be stationary. Let us therefore introduce a very important expression, crucial in both classical and quantum physics, which is known as the ”action” of the trajectory. The action is a function which depends on all the points {xn }, n = 0, 1, ..., N of the trajectory, and in this case it is ...
Models of wave-function collapse
... we call a physical system a quantum system and when do we call it a classical measuring apparatus? In other words, where is the quantum-classical divide? How much mass or how many degrees of freedom (say number of nucleons) should an object have, before it qualifies as an apparatus? Of course, in or ...
... we call a physical system a quantum system and when do we call it a classical measuring apparatus? In other words, where is the quantum-classical divide? How much mass or how many degrees of freedom (say number of nucleons) should an object have, before it qualifies as an apparatus? Of course, in or ...
Relativistic quantum mechanics and the S matrix
... straightforward to construct the generators for a fixed number of noninteracting particles. In a seminal paper, Dirac 关1兴 discussed three different schemes for incorporating interactions into the noninteracting generators. These schemes are known as the instant form, front form, and point form. Here ...
... straightforward to construct the generators for a fixed number of noninteracting particles. In a seminal paper, Dirac 关1兴 discussed three different schemes for incorporating interactions into the noninteracting generators. These schemes are known as the instant form, front form, and point form. Here ...
On Fractional Schrödinger Equation and Its Application
... The third definition of Liovilli includes ...
... The third definition of Liovilli includes ...
Solid Helium-4: A Supersolid?
... Supersolid = Solid with Superfluid Properties Introduction: Solids - Quantum or Otherwise Living in the Past This is the Moment Days of Future Passed ...
... Supersolid = Solid with Superfluid Properties Introduction: Solids - Quantum or Otherwise Living in the Past This is the Moment Days of Future Passed ...
Quantum Error Correction
... errors (i.e., to correct t errors, we need distance 2t+1): The error syndrome is the list of eigenvalues of the generators of S. E and F have the same error syndrome iff E†F ∈ N(S). (Then E and F commute with the same set of generators of S.) If E†F ∉ N(S), the error syndrome can distinguish them. W ...
... errors (i.e., to correct t errors, we need distance 2t+1): The error syndrome is the list of eigenvalues of the generators of S. E and F have the same error syndrome iff E†F ∈ N(S). (Then E and F commute with the same set of generators of S.) If E†F ∉ N(S), the error syndrome can distinguish them. W ...
Experiments with Entangled Photons Bell Inequalities, Non-local Games and Bound Entanglement
... Bell inequalities are important, since these can indicate when a system possesses non-classical properties and hence can be used to achieve classically impossible tasks. Recently, it is shown that the application of graph theory to Bell inequalities can bring new insights [17]. Using these technique ...
... Bell inequalities are important, since these can indicate when a system possesses non-classical properties and hence can be used to achieve classically impossible tasks. Recently, it is shown that the application of graph theory to Bell inequalities can bring new insights [17]. Using these technique ...
Phase coherence and superfluid-insulator transition in a disordered Bose-Einstein condensate *
... disordered BEC or due to interference of a few BECs separated by high potential barriers with no well-defined relative phase between them, as in either of these scenarios the fringe positions are not expected to be reproducible. Numerical simulations based on the Gross-Pitaevskii equation 关11,21兴. h ...
... disordered BEC or due to interference of a few BECs separated by high potential barriers with no well-defined relative phase between them, as in either of these scenarios the fringe positions are not expected to be reproducible. Numerical simulations based on the Gross-Pitaevskii equation 关11,21兴. h ...