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Conditional phase shift gate

WebJan 9, 2001 · Conditional geometric phase shift gate, which is fault tolerate to certain errors due to its geometric property, is made by NMR technique recently under adiabatic condition. By the adiabatic requirement, the result is inexact unless the Hamiltonian changes extremely slowly in the process. However, in quantum computation, everything has to be … WebMay 18, 2024 · Here, we present an alternative approach using a tunable cross-Kerr-type ZZ-interaction between two qubits, which we realize by a flux-tunable coupler element. …

Implementation of conditional phase-shift gate for quantum inf…

Webduced nonlinearity has been verified by a conditional phase shift for onespecific input (21), the complete function of a NSgate for arbitrary inputs has not been demonstrated. … WebDec 1, 2011 · We suggest the improvement of description methods for quantum phase gate implementation based on cavity QED. Qubits are encoded into two lowest Fock states. Three qubit phase transformation is resulted from the interaction between Rydberg atom and three modes of cavity electromagnetic field. Evolution of conditional field states … ritas straw-ber-rita https://eastwin.org

Design of geometric phase gates and controlling the dynamic phase …

WebImplementation of conditional phase-shift gate for quantum information processing by NMR, using transition-selective pulses Anil Kumar 2002, Journal of Magnetic Resonance WebImplementation of nondeterministic conditional sign flip gate. An important element of the KLM scheme is the conditional sign flip or nonlinear sign flip gate (NS-gate) as shown … WebNov 1, 2024 · phase gate (QPG) using Rydberg-EIT in a counter-propagating setup was first discussed by Friedler et al [56] and an extended description was shown by Gorshkov et al [30].However,a study including all effects that decrease the fidelity of the phase gate, as well as, a discussion of a specific microscopic setup is still missing. smiley images free

Rydberg-interaction gates via adiabatic passage and phase control …

Category:A quantum gate between a flying optical photon and a single ... - Nature

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Conditional phase shift gate

Large conditional single-photon cross-phase modulation

WebAug 27, 2001 · A conditional geometric phase shift gate, which is fault tolerant to certain types of errors due to its geometric nature, was realized recently via nuclear magnetic resonance (NMR) under adiabatic conditions. However, in quantum computation, everything must be completed within the decoherence time. The adiabatic condition makes any fast ... WebMay 8, 2013 · The technique described here constitutes an interesting approach to quantum computation, one that builds conditional phase shift gates entirely based on geometric phases. This technique, as mentioned earlier, is readily implementable with current technology in quantum optics and has already been demonstrated by some of the …

Conditional phase shift gate

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WebOct 29, 2024 · An important ingredient is the creation of a conditional π phase shift. ... Hao, Y. M. et al. Quantum controlled-phase-flip gate between a flying optical photon and a Rydberg atomic ensemble. WebApr 9, 2014 · Therefore, the reflection of a photon results in a conditional phase shift of π, that is, a sign change, between the atomic and the photonic qubit: Figure 1: Atom–photon quantum gate. a ...

WebThe circuit comprises a two-qubit controlled phase gate and a three-qubit controlled-controlled phase gate with fully tunable conditional phase shifts. We fully characterize the output states of our circuit by quantum state tomography and perform a comprehensive analysis of the trade-off between the measurement sensitivity and the success ... WebJan 1, 2005 · The U.S. Department of Energy's Office of Scientific and Technical Information

WebFeb 11, 2011 · Conditional Phase Shift for Quantum CCNOT Operation. Alexander Ig. Trifanov, George P. Miroshnichenko. We suggest the improvement of description methods for quantum phase gate implementation in the cavity of QED configuration. Qubits are encoded into two lowest Fock state. WebOct 13, 1999 · The experimental realisation of the basic constituents of quantum information processing devices, namely fault-tolerant quantum logic gates, requires conditional quantum dynamics, in which one subsystem undergoes a coherent evolution that depends on the quantum state of another subsystem. In particular, the subsystem may acquire a …

WebNov 8, 1995 · Measurements of the birefringence of a single atom strongly coupled to a high-finesse optical resonator are reported, with nonlinear phase shifts observed for …

WebJun 4, 2024 · $\begingroup$ @NorbertSchuch No, the 2x2 matrices shown here are single qubit c-phase gates, or sometimes called the conditional phase shift gate (when it's for 1 qubit), and for a single qubit gate there's no need for an ancilla qubit, so it stays a 2x2 matrix, maybe I misunderstood your question. QFT can be implemented with only single … ritas south phillyWebJun 3, 2024 · How can I code a Conditional phase shift transform? Ask Question Asked 2 years, 10 months ago. ... This works using the same phase kickback principle as in the … smiley impatientWebIn IBM Quantum Composer, the phase disk at the terminus of each qubit gives the local state of each qubit at the end of the computation. Hovering over a phase disk gives full details. For example: Quantum Composer has a series of quantum phase-shift gates that allow us to shift this phase by the following: T. gate. smiley im wordWebNov 1, 2002 · This gate has so far been implemented in NMR by using coupling evolution method. We demonstrate here the implementation of the conditional phase-shift gate using transition selective pulses. As an application of the gate, we demonstrate Grover’s search algorithm and quantum Fourier transform by simulations and experiments using … ritas st ivesWebThe average phase shift fits to a line (black) with slope of 0.43(1) rad per photon that agrees with the expected phase shift per cavity photon of 0.38 rad per photon. The red … ritas sugar free cherry nutritionWebThe conditional phase shift gate introduces a phase shift only if a predetermined condition is satisfied. In one qubit system, the conditional phase shift gate is an unitary transform of the form [8]; C1(φ) = 1 0 0 eiφ! or C0(φ) = eiφ 0 0 1! (1) The C1(φ) introduces a phase shift if the qubit is in state 1i and C0(φ) introduces a phase ... ritas straw-ber-rita gluten freesmiley incision