A quantum-information-theoretic complement to a general
... the programmer and halts. However, as long as the computer does not find such an inconsistency, it continues checking and no signal is sent. Obviously, this set-up assumes, quite unrealistically, that the computer never crashes, is free of programming bugs, has access to an arbitrary large memory an ...
... the programmer and halts. However, as long as the computer does not find such an inconsistency, it continues checking and no signal is sent. Obviously, this set-up assumes, quite unrealistically, that the computer never crashes, is free of programming bugs, has access to an arbitrary large memory an ...
Quantum Theory Cannot Hurt You
... As a science writer I am constantly amazed by how much stranger science is than science fiction, how much more incredible the Universe is than anything we could possibly have invented. Despite this, however, very few of the extraordinary discoveries of the past century seem to have trickled through ...
... As a science writer I am constantly amazed by how much stranger science is than science fiction, how much more incredible the Universe is than anything we could possibly have invented. Despite this, however, very few of the extraordinary discoveries of the past century seem to have trickled through ...
here
... a phase eiα . If hu|vi = 0 then the vectors are orthogonal. • Two state vectors that differ by multiplication by a non-zero complex number ψ2 (x) = cψ1 (x) represent the same physical state. We often work with unit norm states. • A basis for the Hilbert space is a set of vectors |ei i such that any ...
... a phase eiα . If hu|vi = 0 then the vectors are orthogonal. • Two state vectors that differ by multiplication by a non-zero complex number ψ2 (x) = cψ1 (x) represent the same physical state. We often work with unit norm states. • A basis for the Hilbert space is a set of vectors |ei i such that any ...
Factoring 51 and 85 with 8 qubits
... the objective of the quantum stage of the algorithm is to calculate r. Therefore we do not regard the factorization of products of Fermat primes to be genuine implementations of Shor’s algorithm. Moreover, such special cases can be efficiently factored classically, by comparing N against a list of p ...
... the objective of the quantum stage of the algorithm is to calculate r. Therefore we do not regard the factorization of products of Fermat primes to be genuine implementations of Shor’s algorithm. Moreover, such special cases can be efficiently factored classically, by comparing N against a list of p ...
Coherent control of macroscopic quantum states in a single
... To investigate the coherent evolution, we applied a sharp voltage pulse to the pulse gate to control energy levels of the charge states and to manipulate the quantum state as shown in Fig. 2a and b. If we select an initial condition Qt Q0 far to the left from the resonance point (where Q0 is the d ...
... To investigate the coherent evolution, we applied a sharp voltage pulse to the pulse gate to control energy levels of the charge states and to manipulate the quantum state as shown in Fig. 2a and b. If we select an initial condition Qt Q0 far to the left from the resonance point (where Q0 is the d ...
URL - StealthSkater
... magnetic flux tubes by a phase transition changing Planck constant could be fundamental in biocatalysis since it would allow distant molecules connected by flux tubes to find each other in the molecular crowd. DNA as a topological quantum computer is the idea that I have been developing for 5 years ...
... magnetic flux tubes by a phase transition changing Planck constant could be fundamental in biocatalysis since it would allow distant molecules connected by flux tubes to find each other in the molecular crowd. DNA as a topological quantum computer is the idea that I have been developing for 5 years ...
Probability, Expectation Value and Uncertainty
... the operator represents all the possible results that could be obtained if the associated physical observable were to be measured. The eigenstates of the operator are the states of the system for which the associated eigenvalue would be, with 100% certainty, the measured result, if the observable we ...
... the operator represents all the possible results that could be obtained if the associated physical observable were to be measured. The eigenstates of the operator are the states of the system for which the associated eigenvalue would be, with 100% certainty, the measured result, if the observable we ...
Matrix Mechanics and Wave Mechanics - Philsci
... moments, the foundations of scientific practice might not live up to even minimal standards of rigor, as such standards are established in the practice of logic, mathematics, and mathematical physics, thereby prompting one to question the rationality of the practice of physics. Following Muller’s li ...
... moments, the foundations of scientific practice might not live up to even minimal standards of rigor, as such standards are established in the practice of logic, mathematics, and mathematical physics, thereby prompting one to question the rationality of the practice of physics. Following Muller’s li ...
Detection of Quantum Critical Points by a Probe Qubit
... W denotes the Walsh-Hadamard transform, and x iy =2. The controlled operations P0 and P1 denote the evolutions for preparing j g Bz;0 i and j g Bz;1 i, if qubit 0 is in state j0i or j1i, respectively. (b) Chemical structure of Diethylfluoromalonate. The three qubits are marked by the ...
... W denotes the Walsh-Hadamard transform, and x iy =2. The controlled operations P0 and P1 denote the evolutions for preparing j g Bz;0 i and j g Bz;1 i, if qubit 0 is in state j0i or j1i, respectively. (b) Chemical structure of Diethylfluoromalonate. The three qubits are marked by the ...
An Effective Quantum Potential for Particle
... the method of image charges can be used to include discontinuities in the permittivity and the presence of metallic contacts. In the case of complicated geometries, it may be non-trivial to apply this method. ...
... the method of image charges can be used to include discontinuities in the permittivity and the presence of metallic contacts. In the case of complicated geometries, it may be non-trivial to apply this method. ...
Bohr`s Theory of the Atom: Content, Closure and - Philsci
... Bohr’s theory has been controversial from the beginning. At the height of its success in 1914 Einstein is reported as stating, ‘The theory of Bohr must then be right.’ The same month, and aware of the same successes of the theory, von Laue flatly asserted, ‘This is nonsense!’1 The first goal of this ...
... Bohr’s theory has been controversial from the beginning. At the height of its success in 1914 Einstein is reported as stating, ‘The theory of Bohr must then be right.’ The same month, and aware of the same successes of the theory, von Laue flatly asserted, ‘This is nonsense!’1 The first goal of this ...
Existential Contextuality and the Models of Meyer, Kent and Clifton
... Meyer [1], Kent [2] and Clifton and Kent [3] (MKC in the sequel) have recently proposed a new class of hidden variables models in which values are only assigned to a restricted subset of the set of all observables. MKC claim that their models “nullify” the Kochen-Specker theorem [4, 5, 6, 7, 8]. In ...
... Meyer [1], Kent [2] and Clifton and Kent [3] (MKC in the sequel) have recently proposed a new class of hidden variables models in which values are only assigned to a restricted subset of the set of all observables. MKC claim that their models “nullify” the Kochen-Specker theorem [4, 5, 6, 7, 8]. In ...
Eavesdropping of two-way coherent-state quantum cryptography via gaussian quantum cloning machines
... information on both the reference β and the total displacement α + β in order to access Alice’s encoding α (this is actually true because the attack is disjoint). Let us consider two different attacks, one on the forward use of the channel and the other one in the backward use, by using two optimal ...
... information on both the reference β and the total displacement α + β in order to access Alice’s encoding α (this is actually true because the attack is disjoint). Let us consider two different attacks, one on the forward use of the channel and the other one in the backward use, by using two optimal ...
Quantum algorithms - People @ EECS at UC Berkeley
... Now let us look more closely at the quantum part of the algorithm. Some of the key quantum operations (which we will soon discuss) can be thought of as looking for certain kinds of patterns in a superposition of states. Because of this, it is helpful to think of the algorithm as having two stages. I ...
... Now let us look more closely at the quantum part of the algorithm. Some of the key quantum operations (which we will soon discuss) can be thought of as looking for certain kinds of patterns in a superposition of states. Because of this, it is helpful to think of the algorithm as having two stages. I ...
Bohr–Einstein debates
The Bohr–Einstein debates were a series of public disputes about quantum mechanics between Albert Einstein and Niels Bohr. Their debates are remembered because of their importance to the philosophy of science. An account of the debates was written by Bohr in an article titled ""Discussions with Einsteinon Epistemological Problems in Atomic Physics"". Despite their differences of opinion regarding quantum mechanics, Bohr and Einstein had a mutual admiration that was to last the rest of their lives.The debates represent one of the highest points of scientific research in the first half of the twentieth century because it called attention to an element of quantum theory, quantum non-locality, which is absolutely central to our modern understanding of the physical world. The consensus view of professional physicists has been that Bohr proved victorious, and definitively established the fundamental probabilistic character of quantum measurement.