Mutually unbiased bases, orthogonal Latin squares, and hidden
... all the vectors from other bases. MUBs encapsulate the concept of complementarity in the quantum formalism. Although complementarity is at the heart of quantum physics, the question about the number of MUBs remains unanswered. Apart from being of foundational interest, MUBs find applications in quan ...
... all the vectors from other bases. MUBs encapsulate the concept of complementarity in the quantum formalism. Although complementarity is at the heart of quantum physics, the question about the number of MUBs remains unanswered. Apart from being of foundational interest, MUBs find applications in quan ...
Design of Reversible Logic based Basic Combinational Circuits
... the same function. Figures 1 & 2 shows the NAND realization using either fredkin gate or peres respectively. Figures 3 & 4 shows the AND function using Fredkin gate and peres gate respectively. Figures 5 & 6 shows OR and NOR function using fredkin gate. Figures 7,8 and 15 shows how single reversible ...
... the same function. Figures 1 & 2 shows the NAND realization using either fredkin gate or peres respectively. Figures 3 & 4 shows the AND function using Fredkin gate and peres gate respectively. Figures 5 & 6 shows OR and NOR function using fredkin gate. Figures 7,8 and 15 shows how single reversible ...
... solid-state transistors or vacuum tubes, sufficient noise margins allow for variability at the input. Such systems are inherently cascadable, and no redundancy is required. The output is standardized to the proper logic level, provided that the input lies within the specified margin. In logical stat ...
Few-electron quantum dot circuit with integrated charge read out
... The problem is that the gates, used to deplete the dots, also strongly influence the tunnel barriers. Reducing the electron number would always lead to the Coulomb peaks becoming unmeasurably small, but not necessarily due to an empty double dot. The QPC detectors now permit us to compare charge and ...
... The problem is that the gates, used to deplete the dots, also strongly influence the tunnel barriers. Reducing the electron number would always lead to the Coulomb peaks becoming unmeasurably small, but not necessarily due to an empty double dot. The QPC detectors now permit us to compare charge and ...
Semiconductor qubits for quantum computation
... D- state (D+ state) on neighbor transistors, change in channel current -> Singlet state Channel current constant -> triplet state ...
... D- state (D+ state) on neighbor transistors, change in channel current -> Singlet state Channel current constant -> triplet state ...
Semiconductor qubits for quantum computation
... D- state (D+ state) on neighbor transistors, change in channel current -> Singlet state Channel current constant -> triplet state ...
... D- state (D+ state) on neighbor transistors, change in channel current -> Singlet state Channel current constant -> triplet state ...
Electronic structure of rectangular quantum dots
... During the rapid development of nanotechnology, the discoveries in the physics of small electronic structures have concurrently opened new channels in this extremely active field of both theoretical and experimental research. Quantum dots, which fundamentally are confined electron bunches, represent ...
... During the rapid development of nanotechnology, the discoveries in the physics of small electronic structures have concurrently opened new channels in this extremely active field of both theoretical and experimental research. Quantum dots, which fundamentally are confined electron bunches, represent ...
Algorithmic complexity of quantum states
... How does KNet (|ϕi) depend on the precision parameter ε? ✳ Using only 1-qubit gates, plus the controlled-not it is possible to reproduce any unitary operation over Q N using O(4N ) gates [4]. ✳ We want to reproduce the action of a unitary on only one given state. ⇒ O(2 N ) gates are sufficient to pr ...
... How does KNet (|ϕi) depend on the precision parameter ε? ✳ Using only 1-qubit gates, plus the controlled-not it is possible to reproduce any unitary operation over Q N using O(4N ) gates [4]. ✳ We want to reproduce the action of a unitary on only one given state. ⇒ O(2 N ) gates are sufficient to pr ...
How Much Information Is In A Quantum State?
... produce an approximate classical description of Not something I just made up! “As seen in Science & Nature” Well-known problem: To do tomography on an entangled state of n spins, you need ~cn measurements Current record: 8 spins / ~656,000 experiments (!) This is a conceptual problem—not just a pr ...
... produce an approximate classical description of Not something I just made up! “As seen in Science & Nature” Well-known problem: To do tomography on an entangled state of n spins, you need ~cn measurements Current record: 8 spins / ~656,000 experiments (!) This is a conceptual problem—not just a pr ...
Quantum Algorithms and Cryptography
... error-correction, cryptography, algorithms, computational complexity…) ...
... error-correction, cryptography, algorithms, computational complexity…) ...
Tunneling between Edge States in a Quantum Spin Hall System
... [13] C. Xu and J. E. Moore, Phys. Rev. B 73, 045322 (2006). [14] See, e.g., D. Sénéchal in Theoretical Methods for Strongly Correlated Electrons, edited by D. Sénéchal, A.-M. Tremblay, and C. Bourbonnais (Springer, Berlin, 2003). [15] A. Furusaki and N. Nagaosa, Phys. Rev. B 47, 4631 ...
... [13] C. Xu and J. E. Moore, Phys. Rev. B 73, 045322 (2006). [14] See, e.g., D. Sénéchal in Theoretical Methods for Strongly Correlated Electrons, edited by D. Sénéchal, A.-M. Tremblay, and C. Bourbonnais (Springer, Berlin, 2003). [15] A. Furusaki and N. Nagaosa, Phys. Rev. B 47, 4631 ...
Evolutionary Computation
... Fruitflies have an insensitive exoskeleton peppered with sensors formed from short bristles attached to nerve cells. It is important that the bristles are more or less evenly spread out across the surface of the fly. In particular it is undesirable to have two bristles right next to each other. The ...
... Fruitflies have an insensitive exoskeleton peppered with sensors formed from short bristles attached to nerve cells. It is important that the bristles are more or less evenly spread out across the surface of the fly. In particular it is undesirable to have two bristles right next to each other. The ...
Lecture 7: Quantum Fourier Transform over ZN 1 Overview 2
... As suggested by the notation, it’s actually easier to do this transformation if we take the least significant bit of x to the most significant bit of the output. To see this, on the most significant output wire we want √12 (|0i + ω −8x |1i. At first glance it looks like we need all of x for this. Ho ...
... As suggested by the notation, it’s actually easier to do this transformation if we take the least significant bit of x to the most significant bit of the output. To see this, on the most significant output wire we want √12 (|0i + ω −8x |1i. At first glance it looks like we need all of x for this. Ho ...
Science Journals — AAAS
... quantum computers (1–3), which, as they increase in scale, will allow enhanced performance of tasks in secure networking, simulations, distributed computing, and other key tasks where exponential speedups are available. Processing circuits to realize these applications are built up from logic gates ...
... quantum computers (1–3), which, as they increase in scale, will allow enhanced performance of tasks in secure networking, simulations, distributed computing, and other key tasks where exponential speedups are available. Processing circuits to realize these applications are built up from logic gates ...
Syllabus: Quantum computing - University of Hawaii Physics and
... Topics in current theoretical research; e.g., quantum informational representations of field theories. This course is an introduction to quantum information theory (qubits, quantum gates, and qubit systems). It covers a few selected quantum algorithms, yet the emphasis of the course is on quantum si ...
... Topics in current theoretical research; e.g., quantum informational representations of field theories. This course is an introduction to quantum information theory (qubits, quantum gates, and qubit systems). It covers a few selected quantum algorithms, yet the emphasis of the course is on quantum si ...