Nanodot-Cavity Electrodynamics and Photon
... Because of the resonance features in the T matrix, the transmission coefficient tXX fe i! , where f and ! are functions of the wave vectors, can cause the amplitude and phase modulation of the transmitted wave since the incoming photons are in wave packets. The amplitude modulation can be suppress ...
... Because of the resonance features in the T matrix, the transmission coefficient tXX fe i! , where f and ! are functions of the wave vectors, can cause the amplitude and phase modulation of the transmitted wave since the incoming photons are in wave packets. The amplitude modulation can be suppress ...
The quantum mechanics of photon addition and subtraction
... Such single-photon operations were limited to pure theoretical discussions until 2004, when Grangier and coworkers found a simple way to subtract a photon2 from a field. Passing through a beam splitter of high transmittivity, some photons can be split from the initial field. A ‘click’ detected in th ...
... Such single-photon operations were limited to pure theoretical discussions until 2004, when Grangier and coworkers found a simple way to subtract a photon2 from a field. Passing through a beam splitter of high transmittivity, some photons can be split from the initial field. A ‘click’ detected in th ...
a pedagogical / historical introduction (D. Downes)
... Question in an interferometry course: Suppose we could detect an individual photon (e.g. on a hard disk at one antenna of the Plateau de Bure interferometer). Then how can we get interference? ...
... Question in an interferometry course: Suppose we could detect an individual photon (e.g. on a hard disk at one antenna of the Plateau de Bure interferometer). Then how can we get interference? ...
Two-photon quantum walk in a multimode fiber
... enable controllable propagation using techniques developed with classical light. Strong and complex multimode coupling in the fiber arises from interference between a well-defined number of spatial modes supported by the fiber. Moreover, the use of MMF for quantum applications is enhanced by the nea ...
... enable controllable propagation using techniques developed with classical light. Strong and complex multimode coupling in the fiber arises from interference between a well-defined number of spatial modes supported by the fiber. Moreover, the use of MMF for quantum applications is enhanced by the nea ...
Two-photon quantum walk in a multimode fiber
... enable controllable propagation using techniques developed with classical light. Strong and complex multimode coupling in the fiber arises from interference between a well-defined number of spatial modes supported by the fiber. Moreover, the use of MMF for quantum applications is enhanced by the nea ...
... enable controllable propagation using techniques developed with classical light. Strong and complex multimode coupling in the fiber arises from interference between a well-defined number of spatial modes supported by the fiber. Moreover, the use of MMF for quantum applications is enhanced by the nea ...
Integer Quantum Hall Effect for Bosons
... means that we can equally well regard the bosonic integer quantum Hall state as an example of an SPT phase with SUð2Þ pseudospin symmetry, rather than Uð1Þ particle number conservation symmetry. In particular, explicit breaking of the global Uð1Þ symmetry by adding spin singlet pairing terms to the ...
... means that we can equally well regard the bosonic integer quantum Hall state as an example of an SPT phase with SUð2Þ pseudospin symmetry, rather than Uð1Þ particle number conservation symmetry. In particular, explicit breaking of the global Uð1Þ symmetry by adding spin singlet pairing terms to the ...
Quantum Logic and Quantum gates with Photons
... complex Hamiltonian whose ground state is a solution to the problem and then evolving a simple prepared Hamiltonian to the complex one. • Cluster State QC- is an architecture in which computation evolves by making a series of single qubit measurements on a highly entangled initial state called the c ...
... complex Hamiltonian whose ground state is a solution to the problem and then evolving a simple prepared Hamiltonian to the complex one. • Cluster State QC- is an architecture in which computation evolves by making a series of single qubit measurements on a highly entangled initial state called the c ...
SEARCHES FOR NEW PARTICLES AT THE LHC
... Simplest theory – all particles are massless !! A field pervades the universe Particles interacting with this field acquire mass – stronger the interaction the larger the mass The field is a quantum field – its quantum is the Higgs boson. Finding the Higgs boson would establish the existence of this ...
... Simplest theory – all particles are massless !! A field pervades the universe Particles interacting with this field acquire mass – stronger the interaction the larger the mass The field is a quantum field – its quantum is the Higgs boson. Finding the Higgs boson would establish the existence of this ...
PowerPoint ******
... nature.More data is needed to know if the discovered particle exactly matches the predictions of the Standard Model, or whether, as predicted by some theories, multiple Higgs bosons exist. ...
... nature.More data is needed to know if the discovered particle exactly matches the predictions of the Standard Model, or whether, as predicted by some theories, multiple Higgs bosons exist. ...
Permanent Uncertainty: On the Quantum evaluation of the determinant and permanent of a matrix
... each odd permutation is taken with a negative sign. Permanents occur naturally in various counting problems in combinatorics[4], graph theory[1], and logic. If there was a way to evaluate, or even to approximate permanents in a polynomial time, then every P #P (and thus every NP-complete) problem co ...
... each odd permutation is taken with a negative sign. Permanents occur naturally in various counting problems in combinatorics[4], graph theory[1], and logic. If there was a way to evaluate, or even to approximate permanents in a polynomial time, then every P #P (and thus every NP-complete) problem co ...
Measuring And Manipulating Coherence In Photonic And Atomic
... leads to "decoherence," which can be thought of as continual unintentional measurement of n. ...
... leads to "decoherence," which can be thought of as continual unintentional measurement of n. ...
The Future of Computer Science
... Example 2: Period-finding (heart of Shor’s algorithm). Given a sequence X(1),…,X(N) that repeats with period rN, find the period. A quantum computer can do this with only O(1) queries—huge speedup over classical! Example 3: The Collision Problem. Given a 2-to-1 sequence X(1),…,X(N), find a collisi ...
... Example 2: Period-finding (heart of Shor’s algorithm). Given a sequence X(1),…,X(N) that repeats with period rN, find the period. A quantum computer can do this with only O(1) queries—huge speedup over classical! Example 3: The Collision Problem. Given a 2-to-1 sequence X(1),…,X(N), find a collisi ...
PDF
... where ∆τ 2 is the variance of the distribution g(t). This result must be compared to what one would obtain in the classical case where one employs M unentangled pulses each in a coherent state with N average photons. For a fair comparison with the state |Ψi, we must consider the situation in which a ...
... where ∆τ 2 is the variance of the distribution g(t). This result must be compared to what one would obtain in the classical case where one employs M unentangled pulses each in a coherent state with N average photons. For a fair comparison with the state |Ψi, we must consider the situation in which a ...
Towards Heisenberg Limit in Magnetometry with
... with respect to the gain factor g. The pump phase is fixed at . The modulus of the coherent field | 0 | is chosen such that the coincidences coming from SPDC and the coherent fields are equal to each other. The dashed line shows the visibility for the case of photons produced by spontaneous pa ...
... with respect to the gain factor g. The pump phase is fixed at . The modulus of the coherent field | 0 | is chosen such that the coincidences coming from SPDC and the coherent fields are equal to each other. The dashed line shows the visibility for the case of photons produced by spontaneous pa ...
Optical Quantum Information Processing
... ⇒ get large piece of connected cluster state with high probability ...
... ⇒ get large piece of connected cluster state with high probability ...
Lecture 8 1 The Period Finding Problem 2 The Algorithm
... In the above example, s = 0 and s = 128, which are the only integer multiples of M/10 = 25.6 have the highest probability, which is about .1015. The values s = 25 and s = 26 are both close to M/10, but neither is very close, and their probabilities are .0246 and .0571 respectively. The value s = 51 ...
... In the above example, s = 0 and s = 128, which are the only integer multiples of M/10 = 25.6 have the highest probability, which is about .1015. The values s = 25 and s = 26 are both close to M/10, but neither is very close, and their probabilities are .0246 and .0571 respectively. The value s = 51 ...
5. Quantum Field Theory (QFT) — QED Quantum Electrodynamics
... (∗)µ (k, λ) = −ig(2π)4 δ 4 (p + k − p′ )ūα (p′ , s′ )(γ ) β u (p, s)ε(∗)µ (k, λ) ...
... (∗)µ (k, λ) = −ig(2π)4 δ 4 (p + k − p′ )ūα (p′ , s′ )(γ ) β u (p, s)ε(∗)µ (k, λ) ...
Projects - Department of Computer Science and Engineering, CUHK
... We talked about a recent protocol [Z14] in Lecture 8. It’ll be great if the exponential dependence on the degree can be improved. Bait 1: It may not be that hard (actually I didn’t put too much time on this yet). Bait 2: If you can improve it, you’ll get a publication, likely in a top conference. [Z ...
... We talked about a recent protocol [Z14] in Lecture 8. It’ll be great if the exponential dependence on the degree can be improved. Bait 1: It may not be that hard (actually I didn’t put too much time on this yet). Bait 2: If you can improve it, you’ll get a publication, likely in a top conference. [Z ...
comunicato_stampa_cern
... Their results are based on the analysis of considerably more data than those presented at the summer conferences, sufficient to make significant progress in the search for the Higgs boson, but not enough to make any conclusive statement on the existence or nonexistence of the elusive Higgs. The main ...
... Their results are based on the analysis of considerably more data than those presented at the summer conferences, sufficient to make significant progress in the search for the Higgs boson, but not enough to make any conclusive statement on the existence or nonexistence of the elusive Higgs. The main ...