The Learnability of Quantum States
... about! That changes the output distribution by only exp(-n), so we still have an excellent sampler … but we can no longer use it to estimate |Per(A)|2 in BPPNP To get around this difficulty, it seems we need to “smuggle in” the matrix A that we about as a random ...
... about! That changes the output distribution by only exp(-n), so we still have an excellent sampler … but we can no longer use it to estimate |Per(A)|2 in BPPNP To get around this difficulty, it seems we need to “smuggle in” the matrix A that we about as a random ...
Table of Contents
... particle at all times? These questions, which are of personal and academic interest to our students, are largely only superficially addressed in our introductory courses, often for fear of open ...
... particle at all times? These questions, which are of personal and academic interest to our students, are largely only superficially addressed in our introductory courses, often for fear of open ...
RESEARCH SUMMARIES
... Using SF6, we expect to reach Rayleigh numbers up to 2 x 1013 for σ = 0.8. Much of this parameter range is as yet unexplored by previous experiments. Some of it will overlap with results from experiments using cryogenic helium and thus will help to elucidate interesting questions provoked by that wo ...
... Using SF6, we expect to reach Rayleigh numbers up to 2 x 1013 for σ = 0.8. Much of this parameter range is as yet unexplored by previous experiments. Some of it will overlap with results from experiments using cryogenic helium and thus will help to elucidate interesting questions provoked by that wo ...
Quantum Chemistry and Spectroscopy (Chem 341)
... we will work something out on a case-by-case basis depending upon the situation. Problem sets: There will be 4 graded problem sets, which, together, comprise a significant portion (one fourth) your course grade. These problem sets give us a chance to solve problems that are not appropriate for exams ...
... we will work something out on a case-by-case basis depending upon the situation. Problem sets: There will be 4 graded problem sets, which, together, comprise a significant portion (one fourth) your course grade. These problem sets give us a chance to solve problems that are not appropriate for exams ...
Phys. Rev. Lett. 103, 190601 (2009): Quantum Thermal
... dard MD fails. It is important to note that the WignerKirkwood quantum correction made by Matsui [18] in the case of MgO leads to the expected behaviour of the heat capacity and the lattice parameter as a function of temperature but only above 500K. On the contrary, it is clear that the QTB takes in ...
... dard MD fails. It is important to note that the WignerKirkwood quantum correction made by Matsui [18] in the case of MgO leads to the expected behaviour of the heat capacity and the lattice parameter as a function of temperature but only above 500K. On the contrary, it is clear that the QTB takes in ...
What is quantum chaos?
... 4.1 Limits of applicability of the BGS conjecture 4.2 Metal-Insulator transition in quantum chaos ...
... 4.1 Limits of applicability of the BGS conjecture 4.2 Metal-Insulator transition in quantum chaos ...
8 - ijssst
... Special gates have been conceived and fabricated which maintain all information that is passed to them, so that the computation can be run forward and backward. The computational results in a very large amount of junk, because every intermediate step is remembered, but heat generation is eliminated ...
... Special gates have been conceived and fabricated which maintain all information that is passed to them, so that the computation can be run forward and backward. The computational results in a very large amount of junk, because every intermediate step is remembered, but heat generation is eliminated ...
Quantum Parallelism (The Abstract of a Tutorial)
... In the second part of the tutorial we discuss in some depth the concept of quantum parallelism. When we process classical information and we wish to compute all values of a function f (x) of a binary vector x of length n we need either: one copy of the circuit and 2n time steps (assuming that it tak ...
... In the second part of the tutorial we discuss in some depth the concept of quantum parallelism. When we process classical information and we wish to compute all values of a function f (x) of a binary vector x of length n we need either: one copy of the circuit and 2n time steps (assuming that it tak ...
The Emergence of Quantum Mechanics
... resembles a genuine quantum field theory. The states are quantum states in complete accordance with a Copenhagen interpretation. The fields a(~x, t) and b(~x, t) should obey the Wightman axioms. There are three ways, however, in which this theory differs from conventional quantum field theories. One ...
... resembles a genuine quantum field theory. The states are quantum states in complete accordance with a Copenhagen interpretation. The fields a(~x, t) and b(~x, t) should obey the Wightman axioms. There are three ways, however, in which this theory differs from conventional quantum field theories. One ...
titles and abstracts
... Title: Relativity and collapse models Abstract: I will review some recent developments toward understanding how to formulate a collapse model that is consistent with relativity. In collapse models it is supposed that quantum state reduction is a genuine physical process, not just something we do whe ...
... Title: Relativity and collapse models Abstract: I will review some recent developments toward understanding how to formulate a collapse model that is consistent with relativity. In collapse models it is supposed that quantum state reduction is a genuine physical process, not just something we do whe ...
Bose-Einstein spin condensates: revisiting the Einstein
... The interactions in both regions of space may be of completely different nature, depending on the matrix elements between the internal states; for instance, the measurement performed by Alice may involve electric quadrupoles, having nothing to do with angular momentum. Then, in orthodox quantum mech ...
... The interactions in both regions of space may be of completely different nature, depending on the matrix elements between the internal states; for instance, the measurement performed by Alice may involve electric quadrupoles, having nothing to do with angular momentum. Then, in orthodox quantum mech ...
Slides
... Chip-level interconnects also suffer from heat-related issues. All-optical switches may be a good future solution for replacing CMOS transistors. ...
... Chip-level interconnects also suffer from heat-related issues. All-optical switches may be a good future solution for replacing CMOS transistors. ...
a simple explanation of search technique in quantum framework
... This parallelism provides the distinction between classical and quantum algorithmic strategies. For an example the objective of a classical algorithm is to reduce the amplitude of non target states, where as a quantum search algorithm tries to amplify the amplitude of the target states. Here the ter ...
... This parallelism provides the distinction between classical and quantum algorithmic strategies. For an example the objective of a classical algorithm is to reduce the amplitude of non target states, where as a quantum search algorithm tries to amplify the amplitude of the target states. Here the ter ...
Quantum computing
Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.