Toward Practical Solid-State Based Quantum Memories
... single-photon through the creation of a spin excitation. One can retrieve the stored photon by applying the same control field after the storage time. . . . . . . . . . (a) Shows the control field (red) and the input single-photon pulse (blue) that are properly timed for absorption of the input puls ...
... single-photon through the creation of a spin excitation. One can retrieve the stored photon by applying the same control field after the storage time. . . . . . . . . . (a) Shows the control field (red) and the input single-photon pulse (blue) that are properly timed for absorption of the input puls ...
The Tenth Rochester Conferences on Coherence Quantum Information and Measurement
... Many historic advances in quantum optics have been debated at these meetings, and we will celebrate the fiftieth anniversary of the paper by E. T. Jaynes and F. W. Cummings that provided the model underlying many of these advances. In addition, the conferences have featured tutorial lectures, extend ...
... Many historic advances in quantum optics have been debated at these meetings, and we will celebrate the fiftieth anniversary of the paper by E. T. Jaynes and F. W. Cummings that provided the model underlying many of these advances. In addition, the conferences have featured tutorial lectures, extend ...
Defining and detecting quantum speedup
... A related issue is the scaling of hardware resources with problem size and parallelism in classical and quantum devices. To avoid mistaking a parallel speedup for a quantum speedup we need to scale hardware resources (computational gates and memory) in the same way for the devices we compare, and em ...
... A related issue is the scaling of hardware resources with problem size and parallelism in classical and quantum devices. To avoid mistaking a parallel speedup for a quantum speedup we need to scale hardware resources (computational gates and memory) in the same way for the devices we compare, and em ...
Dealing with ignorance: universal discrimination, learning and quantum correlations Gael Sentís Herrera
... further, this is the technique that the statisticians used to come up with the number 246. It is, though, a particular way of handling available information and uncertainty, and certainly not the only possible approach. There is an alternative solution to this problem that, involving different assum ...
... further, this is the technique that the statisticians used to come up with the number 246. It is, though, a particular way of handling available information and uncertainty, and certainly not the only possible approach. There is an alternative solution to this problem that, involving different assum ...
Ph.D. thesis - IceCube Neutrino Observatory
... the rate of about 16 per day, about four of which are sufficiently high quality to use for an analysis. Why study these neutrinos? Nature provides a laboratory with energies far above what we can currently produce on Earth, and studying these high-energy neutrinos can possibly reveal hints of surpri ...
... the rate of about 16 per day, about four of which are sufficiently high quality to use for an analysis. Why study these neutrinos? Nature provides a laboratory with energies far above what we can currently produce on Earth, and studying these high-energy neutrinos can possibly reveal hints of surpri ...
Resource cost results for one-way entanglement
... A compound memoryless source models a preparation device which emits systems, uncorrelated from output to output, all described by the same given density matrix, which in turn is not perfectly known to the communication parties, but identified as a member of a certain set X of quantum states. Conseq ...
... A compound memoryless source models a preparation device which emits systems, uncorrelated from output to output, all described by the same given density matrix, which in turn is not perfectly known to the communication parties, but identified as a member of a certain set X of quantum states. Conseq ...
Entanglement Theory and the Second Law of Thermodynamics
... This will turn out to be the central quantity in this work as it will emerge as the unique entanglement quantifier. Operations – The correct choice of the set of operations employed is crucial for establishing reversibility in entanglement manipulation. To motivate this choice it is instructive to n ...
... This will turn out to be the central quantity in this work as it will emerge as the unique entanglement quantifier. Operations – The correct choice of the set of operations employed is crucial for establishing reversibility in entanglement manipulation. To motivate this choice it is instructive to n ...
A classical treatment of optical tunneling in plasmonic gaps
... through D(r, u) ¼ E(r, u) + 4pP(r, u) ¼ 3(r, u)E(r, u), where the medium polarisation P veries 4pP(r, u) ¼ (3(r, u) 1)E(r, u) (in atomic units). Equivalently, P(r, u) ¼ c(r, u)E(r, u), where c(r, u) ¼ (3(r, u) 1)/4p is the medium polarisability. For an isotropic and homogeneous medium, 3 and c ...
... through D(r, u) ¼ E(r, u) + 4pP(r, u) ¼ 3(r, u)E(r, u), where the medium polarisation P veries 4pP(r, u) ¼ (3(r, u) 1)E(r, u) (in atomic units). Equivalently, P(r, u) ¼ c(r, u)E(r, u), where c(r, u) ¼ (3(r, u) 1)/4p is the medium polarisability. For an isotropic and homogeneous medium, 3 and c ...
Particle in a box
In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers. The model is mainly used as a hypothetical example to illustrate the differences between classical and quantum systems. In classical systems, for example a ball trapped inside a large box, the particle can move at any speed within the box and it is no more likely to be found at one position than another. However, when the well becomes very narrow (on the scale of a few nanometers), quantum effects become important. The particle may only occupy certain positive energy levels. Likewise, it can never have zero energy, meaning that the particle can never ""sit still"". Additionally, it is more likely to be found at certain positions than at others, depending on its energy level. The particle may never be detected at certain positions, known as spatial nodes.The particle in a box model provides one of the very few problems in quantum mechanics which can be solved analytically, without approximations. This means that the observable properties of the particle (such as its energy and position) are related to the mass of the particle and the width of the well by simple mathematical expressions. Due to its simplicity, the model allows insight into quantum effects without the need for complicated mathematics. It is one of the first quantum mechanics problems taught in undergraduate physics courses, and it is commonly used as an approximation for more complicated quantum systems.