Quantifying Entanglement
... effort has been placed on precisely defining just how much entanglement there is in a system. The simple case of pure states of two-part systems is rather well understood, since the von Neumann entropy is the only “reasonable” measure in this context. Things get more complicated, however, in the mix ...
... effort has been placed on precisely defining just how much entanglement there is in a system. The simple case of pure states of two-part systems is rather well understood, since the von Neumann entropy is the only “reasonable” measure in this context. Things get more complicated, however, in the mix ...
Quantum dynamics of cold trapped ions with application to quantum
... a powerful new feature to be incorporated into data processing, namely, the capability of performing logical operations upon quantum mechanical superpositions of numbers. Thus in a conventional digital computer each data register is, throughout any computation, always in a definite state “1” or “0”; ...
... a powerful new feature to be incorporated into data processing, namely, the capability of performing logical operations upon quantum mechanical superpositions of numbers. Thus in a conventional digital computer each data register is, throughout any computation, always in a definite state “1” or “0”; ...
Lecture 8
... Universal quantum gates A set of gates is said to be universal for quantum computation if any unitary operation may be approximated to arbitrary accuracy by a quantum circuit involving only those gates. A unitary matrix U which acts on d-dimensional Hilbert space may be decomposed into a product of ...
... Universal quantum gates A set of gates is said to be universal for quantum computation if any unitary operation may be approximated to arbitrary accuracy by a quantum circuit involving only those gates. A unitary matrix U which acts on d-dimensional Hilbert space may be decomposed into a product of ...
Quantum annealing with manufactured spins
... process using a quantum mechanical model as discussed in the Supplementary Information. In addition to the experimental results, in Fig. 3b we show the results of three different numerical simulations. In all three cases, the model parameters were independently measured for the individual devices, l ...
... process using a quantum mechanical model as discussed in the Supplementary Information. In addition to the experimental results, in Fig. 3b we show the results of three different numerical simulations. In all three cases, the model parameters were independently measured for the individual devices, l ...
Algebraic Bethe Ansatz for XYZ Gaudin model
... The XYZ Gaudin model was introduced by M. Gaudin [1, 2, 3] as a quasiclassical limit of XYZ spin-1/2 chain. Gaudin noticed also that the former model can be generalized to any values of constituing spins. Whereas the spectrum and eigenfunctions of the XXX and XXZ variants of Gaudin model can easily ...
... The XYZ Gaudin model was introduced by M. Gaudin [1, 2, 3] as a quasiclassical limit of XYZ spin-1/2 chain. Gaudin noticed also that the former model can be generalized to any values of constituing spins. Whereas the spectrum and eigenfunctions of the XXX and XXZ variants of Gaudin model can easily ...
Physics from Computer Science — a position statement —
... formalism is actually insufficiently comprehensive for informatic purposes. In describing a protocol such as quantum teleportation, or any quantum process in which the outcome of a measurement is used to determine subsequent actions, the von Neumann formalism does not capture the flow of information ...
... formalism is actually insufficiently comprehensive for informatic purposes. In describing a protocol such as quantum teleportation, or any quantum process in which the outcome of a measurement is used to determine subsequent actions, the von Neumann formalism does not capture the flow of information ...
Towards a Quantum Programming Language
... for the classical hardware and the quantum device to be in the same physical location; it is even possible for several classical controllers to share access to a single quantum device. In quantum complexity theory, algorithms are often presented in a certain normal form: a quantum computation consis ...
... for the classical hardware and the quantum device to be in the same physical location; it is even possible for several classical controllers to share access to a single quantum device. In quantum complexity theory, algorithms are often presented in a certain normal form: a quantum computation consis ...
The Power of Quantum Advice
... Formally: a language L is in BQP/qpoly if there exists a polynomial time quantum algorithm A, as well as quantum advice states {|n}n on poly(n) qubits, such that for every input x of size n, A(x,|n) decides whether or not xL with error probability at most 1/3 ...
... Formally: a language L is in BQP/qpoly if there exists a polynomial time quantum algorithm A, as well as quantum advice states {|n}n on poly(n) qubits, such that for every input x of size n, A(x,|n) decides whether or not xL with error probability at most 1/3 ...
REDUCED AND EXTENDED WEAK COUPLING LIMIT
... history, let us mention [AFLe, HP, Fr, Maa]. Thus one can obtain a Markov c.p. semigroup by reducing a single unitary dynamics, without invoking a family of dynamics and taking its limit. However, the generator of a quantum Langevin dynamics equals i[Z, ·] where Z is a self-adjoint operator that doe ...
... history, let us mention [AFLe, HP, Fr, Maa]. Thus one can obtain a Markov c.p. semigroup by reducing a single unitary dynamics, without invoking a family of dynamics and taking its limit. However, the generator of a quantum Langevin dynamics equals i[Z, ·] where Z is a self-adjoint operator that doe ...
Postprint
... of gauge equivalence classes of formal solutions of the quantum master equation, i. e., on gauge equivalence classes of Maurer-Cartan elements in the differential graded Lie algebra (~OM [[u]][[~]][1], u∆, { , }), where ~ is a formal deformation parameter of degree 0. Our main technical tool is a ve ...
... of gauge equivalence classes of formal solutions of the quantum master equation, i. e., on gauge equivalence classes of Maurer-Cartan elements in the differential graded Lie algebra (~OM [[u]][[~]][1], u∆, { , }), where ~ is a formal deformation parameter of degree 0. Our main technical tool is a ve ...
Dispersive approach to axial anomaly and hadronic contribution to g-2
... writing unsubtracted dispersion relations with respect to ...
... writing unsubtracted dispersion relations with respect to ...