Do quantum strategies always win?
... the equal superposition of ‘head’ and ‘tail’, on his first turn, means that whether Picard flips the penny over or not, it remains in an equal superposition which Q can rotate back to ‘head’ by applying H again since H = H −1 . So Q always wins when they open the box. Thus playing the penny flip gam ...
... the equal superposition of ‘head’ and ‘tail’, on his first turn, means that whether Picard flips the penny over or not, it remains in an equal superposition which Q can rotate back to ‘head’ by applying H again since H = H −1 . So Q always wins when they open the box. Thus playing the penny flip gam ...
QUANTUM ERROR CORRECTING CODES FROM THE
... The stabilizer formalism for QEC [5, 6] gives a constructive framework to find correctable codes for error models of “Pauli type”. While there are other successful techniques that can be applied in special cases (for instance, see [7–14]), the landscape of general strategies to find codes for other ...
... The stabilizer formalism for QEC [5, 6] gives a constructive framework to find correctable codes for error models of “Pauli type”. While there are other successful techniques that can be applied in special cases (for instance, see [7–14]), the landscape of general strategies to find codes for other ...
Realization of a Knill-Laflamme-Milburn controlled
... atoms, nuclear spins, quantum dots, superconductor and photons— while photons are indispensable for quantum communication [2, 3] and are particularly promising for quantum metrology [4, 5]. In addition to low-noise quantum systems (typically two-level ‘qubits’) quantum information protocols require ...
... atoms, nuclear spins, quantum dots, superconductor and photons— while photons are indispensable for quantum communication [2, 3] and are particularly promising for quantum metrology [4, 5]. In addition to low-noise quantum systems (typically two-level ‘qubits’) quantum information protocols require ...
Do You Need to Believe in Orbitals to Use Them - Philsci
... concepts capture some chemical information much more efficiently. For example, orbital models readily portray information about groups of similar molecules that a treatment with more accurate wave-functions derived from configuration interaction obscures. Accurate wave-functions must be developed fr ...
... concepts capture some chemical information much more efficiently. For example, orbital models readily portray information about groups of similar molecules that a treatment with more accurate wave-functions derived from configuration interaction obscures. Accurate wave-functions must be developed fr ...
Minimally Entangled Typical Quantum States at Finite Temperature
... METTS are biased to be classical, which makes C‘ meaningful. It is surprising how little variation there is in C‘ from site to site. The METTS can be evolved in real time (say, with realtime DMRG). The ensemble averages of METTS states are time-independent, but the METTS themselves are not. Much as ...
... METTS are biased to be classical, which makes C‘ meaningful. It is surprising how little variation there is in C‘ from site to site. The METTS can be evolved in real time (say, with realtime DMRG). The ensemble averages of METTS states are time-independent, but the METTS themselves are not. Much as ...
Quasiparticles in the Quantum Hall Effect Janik Kailasvuori Stockholm University
... The content of this research is technical and mathematical and can most likely only be appreciated by those who have studied physics at university level, and among them probably only by a small fraction specialised into the same branch. (Alas, the very specialised nature of today’s scientific resear ...
... The content of this research is technical and mathematical and can most likely only be appreciated by those who have studied physics at university level, and among them probably only by a small fraction specialised into the same branch. (Alas, the very specialised nature of today’s scientific resear ...
chap3
... eigenfunctions of a Hermitian operator Q because ... These eigenvalues and eigenfunctions are the determinate states that form the stationary solutions to the Schroedinger Equation. Solving the eigenvalue problem of the corresponding Hermitian operator is an integral part to the total prediction of ...
... eigenfunctions of a Hermitian operator Q because ... These eigenvalues and eigenfunctions are the determinate states that form the stationary solutions to the Schroedinger Equation. Solving the eigenvalue problem of the corresponding Hermitian operator is an integral part to the total prediction of ...
Quantum Theory and the Brain - Biological and Soft Systems
... of an observer (as something which has that sort of substrate). This could well be a major step towards providing a complete interpretation of quantum mechanics, since the analysis of observers and observation is the central problem in that task. We shall discuss the remaining steps in §9. Leaving a ...
... of an observer (as something which has that sort of substrate). This could well be a major step towards providing a complete interpretation of quantum mechanics, since the analysis of observers and observation is the central problem in that task. We shall discuss the remaining steps in §9. Leaving a ...
Quantum Monte Carlo Methods Chapter 14
... words? I believe it is the atomic hypothesis (or atomic fact, or whatever you wish to call it) that all things are made of atoms, little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. In ...
... words? I believe it is the atomic hypothesis (or atomic fact, or whatever you wish to call it) that all things are made of atoms, little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. In ...
A two-qubit logic gate in silicon
... Quantum computation requires qubits that can be coupled in a scalable manner, together with universal and high-fidelity one- and two-qubit logic gates1,2. Many physical realizations of qubits exist, including single photons3, trapped ions4, superconducting circuits5, single defects or atoms in diamo ...
... Quantum computation requires qubits that can be coupled in a scalable manner, together with universal and high-fidelity one- and two-qubit logic gates1,2. Many physical realizations of qubits exist, including single photons3, trapped ions4, superconducting circuits5, single defects or atoms in diamo ...
How Quantum Computers Fail - Einstein Institute of Mathematics
... based on the individual qubits.) In contrast, we can regard the subspace of bosonic states as a quantum code, and the type of noise we expect amounts to having a mixed state between the intended bosonic state and other bosonic states. Such a noise does not exhibit a strong dependence on the computa ...
... based on the individual qubits.) In contrast, we can regard the subspace of bosonic states as a quantum code, and the type of noise we expect amounts to having a mixed state between the intended bosonic state and other bosonic states. Such a noise does not exhibit a strong dependence on the computa ...
Partial Observation of Quantum Turing Machine and Weaker Well
... states that if K is composed of a unique block, then the evolution of a QTM M and the OQTM [M ]K are the same. Another example where K is a bipartition is given in lemma 5. In that example, for a given QTM M , M and [M ]K do not have the same evolution, however in this particular example the computa ...
... states that if K is composed of a unique block, then the evolution of a QTM M and the OQTM [M ]K are the same. Another example where K is a bipartition is given in lemma 5. In that example, for a given QTM M , M and [M ]K do not have the same evolution, however in this particular example the computa ...
Physics Today - Portland State University
... such a system to communicate faster than the speed of light. If the value of a had any effect on the counting statistics at c' and d\ that would clearly violate special relativity. Why quantum theory, a specifically nonrelativistic theory, should conspire to be consistent with relativity in this way ...
... such a system to communicate faster than the speed of light. If the value of a had any effect on the counting statistics at c' and d\ that would clearly violate special relativity. Why quantum theory, a specifically nonrelativistic theory, should conspire to be consistent with relativity in this way ...
E + - IPAM
... • Can we make the 1D construction translationally-invariant with a Hamiltonian which has a non-degenerate ground state? – If the system is described by a single Hamiltonian term applied to all pairs of particles (with bounded precision), how do we encode a circuit?... – Show high entanglement in the ...
... • Can we make the 1D construction translationally-invariant with a Hamiltonian which has a non-degenerate ground state? – If the system is described by a single Hamiltonian term applied to all pairs of particles (with bounded precision), how do we encode a circuit?... – Show high entanglement in the ...
PowerPoint - Subir Sachdev
... N. Read and S. Sachdev, Phys. Rev. Lett. 62, 1694 (1989). C. Lannert, M.P.A. Fisher, and T. Senthil, Phys. Rev. B 63, 134510 (2001) S. Sachdev and K. Park, Annals of Physics, 298, 58 (2002) T. Senthil, A. Vishwanath, L. Balents, S. Sachdev and M.P.A. Fisher, Science 303, 1490 (2004). ...
... N. Read and S. Sachdev, Phys. Rev. Lett. 62, 1694 (1989). C. Lannert, M.P.A. Fisher, and T. Senthil, Phys. Rev. B 63, 134510 (2001) S. Sachdev and K. Park, Annals of Physics, 298, 58 (2002) T. Senthil, A. Vishwanath, L. Balents, S. Sachdev and M.P.A. Fisher, Science 303, 1490 (2004). ...
View the full paper here
... most advanced airplanes, and more than that) became the first paying client. Google is in the process of opening the Quantum Artificial Intelligence Lab, hosted at NASA’s Ames Research Center, and run in conjunction with the Universities Space Research Association. All this while scientists still de ...
... most advanced airplanes, and more than that) became the first paying client. Google is in the process of opening the Quantum Artificial Intelligence Lab, hosted at NASA’s Ames Research Center, and run in conjunction with the Universities Space Research Association. All this while scientists still de ...
The Lamb shift in the hydrogen atom
... where the labels "theor" and "expt" indicate, respectively, theoretical and experimental results. The correction term hEBG(2pl12), which originates from the effective Dirac equation,5 is usually not included in the Lamb shift. From the theoretical viewpoint the difference in the shifts of the s-leve ...
... where the labels "theor" and "expt" indicate, respectively, theoretical and experimental results. The correction term hEBG(2pl12), which originates from the effective Dirac equation,5 is usually not included in the Lamb shift. From the theoretical viewpoint the difference in the shifts of the s-leve ...
Complexity Limitations on Quantum Computation 1 Introduction
... For the rest of the paper, we will assume that the pairing function is implicitly used whenever we have a function of two or more arguments. We can also define many interesting counting classes using GapP functions. For this paper we consider the following classes. Definition 2.3 The class PP consis ...
... For the rest of the paper, we will assume that the pairing function is implicitly used whenever we have a function of two or more arguments. We can also define many interesting counting classes using GapP functions. For this paper we consider the following classes. Definition 2.3 The class PP consis ...