Dynamical quantum-electrodynamics embedding: Combining time
... (Received 11 June 2012; accepted 31 July 2012; published online 21 August 2012) We develop an approach for dynamical (ω > 0) embedding of mixed quantum mechanical (QM)/classical (or more precisely QM/electrodynamics) systems with a quantum sub-region, described by time-dependent density functional t ...
... (Received 11 June 2012; accepted 31 July 2012; published online 21 August 2012) We develop an approach for dynamical (ω > 0) embedding of mixed quantum mechanical (QM)/classical (or more precisely QM/electrodynamics) systems with a quantum sub-region, described by time-dependent density functional t ...
Exact solutions and the adiabatic heuristic for quantum Hall states
... (3) The object of the exercise is of course not so much to provide an elegant path to Laughlin’s wave functions, as to supply an argument for their incompressibility. The construction is robust, if the gap in the excitation spectrum of the initial state then a consequence of Landau-level quantizatio ...
... (3) The object of the exercise is of course not so much to provide an elegant path to Laughlin’s wave functions, as to supply an argument for their incompressibility. The construction is robust, if the gap in the excitation spectrum of the initial state then a consequence of Landau-level quantizatio ...
Slide 1
... Sub-shot-noise sensitivities can be obtained using the sensitivity of the quantum state to displacements, which is related to the sub-Planck phase space structure extracted from its Wigner function. A number of proposals have been advanced for generating single particle cat and generalized states, s ...
... Sub-shot-noise sensitivities can be obtained using the sensitivity of the quantum state to displacements, which is related to the sub-Planck phase space structure extracted from its Wigner function. A number of proposals have been advanced for generating single particle cat and generalized states, s ...
A Classical-Light Attack on Energy-Time Entangled Quantum Key Distribution, and Countermeasures
... operates on individual letters and performs a transposition. As we have seen in these brief examples, cryptography has historically been used to ensure secrecy when communicating over an untrusted channel. This has changed dramatically with the digital revolution, and new developments in cryptograph ...
... operates on individual letters and performs a transposition. As we have seen in these brief examples, cryptography has historically been used to ensure secrecy when communicating over an untrusted channel. This has changed dramatically with the digital revolution, and new developments in cryptograph ...
Quantum information or quantum coding? - Philsci
... something that has to be transmitted between two points for communication purposes. Shannon’s theory is purely quantitative, it ignores any issue related to informational content: “[the] semantic aspects of communication are irrelevant to the engineering problem. The significant aspect is that the a ...
... something that has to be transmitted between two points for communication purposes. Shannon’s theory is purely quantitative, it ignores any issue related to informational content: “[the] semantic aspects of communication are irrelevant to the engineering problem. The significant aspect is that the a ...
On the Topological Origin of Entanglement in Ising Spin Glasses
... Its correlation function gives the Alexander–Conway polynomial of the (possibly) knotted axis of a plaquette-tube, with fixed endpoints on the primary lattice. The partition function Z is also a topological invariant, namely, the Reidemeister torsion of the three-manifold defined by the boundary con ...
... Its correlation function gives the Alexander–Conway polynomial of the (possibly) knotted axis of a plaquette-tube, with fixed endpoints on the primary lattice. The partition function Z is also a topological invariant, namely, the Reidemeister torsion of the three-manifold defined by the boundary con ...
Closed timelike curves make quantum and classical computing equivalent
... It might be thought mysterious that nature ‘finds’ a fixed point r of F: how, one might ask, does nature do this? Does nature not have to find r before the CTC computation starts, so that, in some sense, running the computation is not even necessary? While these issues are admittedly mysterious, to us ...
... It might be thought mysterious that nature ‘finds’ a fixed point r of F: how, one might ask, does nature do this? Does nature not have to find r before the CTC computation starts, so that, in some sense, running the computation is not even necessary? While these issues are admittedly mysterious, to us ...
(2)
... considered in Eq. 共1兲: the time independent parameters R and P label the classical phase space point under consideration and the adiabatic basis in the eigenvalue problem of Eq. 共4兲 is defined at each point in configuration space. In this Eulerian picture the adiabatic dynamics is not considered alo ...
... considered in Eq. 共1兲: the time independent parameters R and P label the classical phase space point under consideration and the adiabatic basis in the eigenvalue problem of Eq. 共4兲 is defined at each point in configuration space. In this Eulerian picture the adiabatic dynamics is not considered alo ...
Quantum Entanglement in Many-body Systems
... The main theme of the whole course is that emergent phenomena appear when individual particles are brought to interact together. The interaction among these particles play a major role in determining the emergent behavior of the system. Interactions, however, induce quantum entanglement. In this sen ...
... The main theme of the whole course is that emergent phenomena appear when individual particles are brought to interact together. The interaction among these particles play a major role in determining the emergent behavior of the system. Interactions, however, induce quantum entanglement. In this sen ...
Nanophotonics I: quantum theory of microcavities Paul Eastham
... Photonics is part of the modern science of light primarily concerned with the control, generation, and manipulation of optical signals. The wave lengths of this light are usually on the order of 1 µm = 1000 nm, so at first sight the relevance of nanoscale physics might appear strained. Nonetheless, ...
... Photonics is part of the modern science of light primarily concerned with the control, generation, and manipulation of optical signals. The wave lengths of this light are usually on the order of 1 µm = 1000 nm, so at first sight the relevance of nanoscale physics might appear strained. Nonetheless, ...
Fermi accelerator in atom optics
... Fermi accelerator describing particles colliding with moving walls have been investigated theoretically @2–6#. The recent experiment @7# on atoms bouncing off a modulated atomic mirror constitutes an atom optics @8# version of the Fermi accelerator. In the present paper, we argue that this system se ...
... Fermi accelerator describing particles colliding with moving walls have been investigated theoretically @2–6#. The recent experiment @7# on atoms bouncing off a modulated atomic mirror constitutes an atom optics @8# version of the Fermi accelerator. In the present paper, we argue that this system se ...
Electronic Structure of Multi-Electron Quantum Dots
... Quantum dots are artificially fabricated atoms, in which charge carriers are confined in all three dimensions just like electrons in real atoms. Consequently, they exhibit properties normally associated with real atoms such as quantised energy levels and shell structures. These properties are descri ...
... Quantum dots are artificially fabricated atoms, in which charge carriers are confined in all three dimensions just like electrons in real atoms. Consequently, they exhibit properties normally associated with real atoms such as quantised energy levels and shell structures. These properties are descri ...
Pauli exclusion principle - University of Illinois Archives
... A more rigorous proof was provided by Freeman Dyson and Andrew Lenard in 1967, who considered the balance of attractive (electron-nuclear) and repulsive (electron-electron and nuclear-nuclear) forces and showed that ordinary matter would collapse and occupy a much smaller volume without the Pauli pr ...
... A more rigorous proof was provided by Freeman Dyson and Andrew Lenard in 1967, who considered the balance of attractive (electron-nuclear) and repulsive (electron-electron and nuclear-nuclear) forces and showed that ordinary matter would collapse and occupy a much smaller volume without the Pauli pr ...
ac-Driven Atomic Quantum Motor - Physik Uni
... ac-driving and the Bloch frequencies are mutually in resonance [19], i.e., q! ¼ r!B , where r and q are coprime integers. Figure 4 shows the dependence of the asymptotic motor speed for different bias values. There are two remarkable features. First, the spectrum of velocities is symmetric around !B ...
... ac-driving and the Bloch frequencies are mutually in resonance [19], i.e., q! ¼ r!B , where r and q are coprime integers. Figure 4 shows the dependence of the asymptotic motor speed for different bias values. There are two remarkable features. First, the spectrum of velocities is symmetric around !B ...
The metron model - Max-Planck
... from classical physics through the indeterminacy unavoidably induced by any measurement process. However, the positivistic Copenhagen interpretation of quantum theory, that it is therefore meaningless to state that the particle has passed through one or the other of the two slits or even to picture ...
... from classical physics through the indeterminacy unavoidably induced by any measurement process. However, the positivistic Copenhagen interpretation of quantum theory, that it is therefore meaningless to state that the particle has passed through one or the other of the two slits or even to picture ...
Density-Matrix Description of the EPR “Paradox”
... Although the original system was prepared as a pure state, Alice’s knowledge of that system (when she is out of lightspeed communication with Bob and the second qbit) is as if her qbit was prepared as a 50:50 mixed state of |0A and |1A . Nothing Bob does changes her understanding of the qbit A (un ...
... Although the original system was prepared as a pure state, Alice’s knowledge of that system (when she is out of lightspeed communication with Bob and the second qbit) is as if her qbit was prepared as a 50:50 mixed state of |0A and |1A . Nothing Bob does changes her understanding of the qbit A (un ...
