Producing Squeezed Input States for an Atomic Clock Using an Optical Cavity.
... The projection noise of uncorrelated test particles imposes a limit on measurement precision known as the Standard Quantum Limit, relevant to current time and frequency measurements [1]. The use of quantum mechanical entanglement to overcome this limit is an active area of research. In the context o ...
... The projection noise of uncorrelated test particles imposes a limit on measurement precision known as the Standard Quantum Limit, relevant to current time and frequency measurements [1]. The use of quantum mechanical entanglement to overcome this limit is an active area of research. In the context o ...
Physics at the FQMT`04 conference
... interference effects and quantum fluctuations. We will discuss in more detail mainly quantum interference and its relation to quantum decoherence and dissipation in the next Section 3. Quantum interference effects also play an essential role in the mesoscopic structured discussed in Section 4. In the ...
... interference effects and quantum fluctuations. We will discuss in more detail mainly quantum interference and its relation to quantum decoherence and dissipation in the next Section 3. Quantum interference effects also play an essential role in the mesoscopic structured discussed in Section 4. In the ...
Quantum process tomography of two-qubit controlled-Z
... and the same 共nonadiabatic兲 scheme has recently been used to create a three-qubit entangled state in transmon qubits.5 To experimentally determine the amplitude and length of the required nonadiabatic Z pulse, we directly measured the coherent oscillation between the 兩11典 and 兩02典 states. This 共iSWA ...
... and the same 共nonadiabatic兲 scheme has recently been used to create a three-qubit entangled state in transmon qubits.5 To experimentally determine the amplitude and length of the required nonadiabatic Z pulse, we directly measured the coherent oscillation between the 兩11典 and 兩02典 states. This 共iSWA ...
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... RS-chain and compare with the known results on the random chain. We also present some results for the k-general chains, more details will be given in a subsequent publication [15]. In the actual calculation, we first transform H in equation (1) into a fermionic model [16] and then use the representa ...
... RS-chain and compare with the known results on the random chain. We also present some results for the k-general chains, more details will be given in a subsequent publication [15]. In the actual calculation, we first transform H in equation (1) into a fermionic model [16] and then use the representa ...
Defining and detecting quantum speedup
... it being governed by open system quantum dynamics. It is well understood that the D-Wave devices, just like any other quantum information processing device, must be error-corrected in order to overcome the effects of decoherence and control errors. While such error correction has already been demons ...
... it being governed by open system quantum dynamics. It is well understood that the D-Wave devices, just like any other quantum information processing device, must be error-corrected in order to overcome the effects of decoherence and control errors. While such error correction has already been demons ...
Document
... “Bare” mass or charge are replaced by physical values e,m as determined from the experiment. A consequence of renormalization procedure: Coupling constants (such ) are not constants: depends on log of measurements energy scale ...
... “Bare” mass or charge are replaced by physical values e,m as determined from the experiment. A consequence of renormalization procedure: Coupling constants (such ) are not constants: depends on log of measurements energy scale ...
CT-Invariant Quantum Spin Hall Effect in Ferromagnetic Graphene
... band gap and established the edge states [5,6]. But the subsequent work found that the SOI in the graphene was quite weak and the gap opening was small, so the QSHE was difficult to observe [8]. Soon afterwards, the QSHE was also predicted to exist in some other systems [9–12]. Recently, the QSHE wa ...
... band gap and established the edge states [5,6]. But the subsequent work found that the SOI in the graphene was quite weak and the gap opening was small, so the QSHE was difficult to observe [8]. Soon afterwards, the QSHE was also predicted to exist in some other systems [9–12]. Recently, the QSHE wa ...
Balanced homodyne detection with high common mode rejection
... At the same time, many dedicated researches have been developed in order to explore an effective detection method and a high-performance photodetector for measuring accurately quantum noise suppression [8]. Measuring the quantum noise requires that all classical noise terms, such as laser intensity ...
... At the same time, many dedicated researches have been developed in order to explore an effective detection method and a high-performance photodetector for measuring accurately quantum noise suppression [8]. Measuring the quantum noise requires that all classical noise terms, such as laser intensity ...
On Quantum Simulators and Adiabatic Quantum Algorithms
... classical search algorithms and Hallgren’s quantum algorithm [6] for Pell’s equation1 which is exponentially faster than any known classical algorithm. Quantum mechanics, in so far as it is a complete natural theory, describes every physical computing device and, so, even classical computers. Theref ...
... classical search algorithms and Hallgren’s quantum algorithm [6] for Pell’s equation1 which is exponentially faster than any known classical algorithm. Quantum mechanics, in so far as it is a complete natural theory, describes every physical computing device and, so, even classical computers. Theref ...
004 Commutators and Time Evolution (the Time Dependent
... at it in so let’s have a look at it there. So what is this? QIJ... so in the particular basis of the eigenvectors of Q what does this statement become? It becomes that Q dagger IJ is equal to – we’ve figured out what QJI is – QJI turned out to be Q, up there, I delta JI or delta IJ, it doesn’t matte ...
... at it in so let’s have a look at it there. So what is this? QIJ... so in the particular basis of the eigenvectors of Q what does this statement become? It becomes that Q dagger IJ is equal to – we’ve figured out what QJI is – QJI turned out to be Q, up there, I delta JI or delta IJ, it doesn’t matte ...
Post-quantum Security of the CBC, CFB, OFB, CTR
... superposition queries to CBC mode, we get kk1 (more precisely, one bit of information about it for each superposition query). This reveals the key k completely and in particular shows that CBC is not IND-qCPA secure. The question of course is whether BCk is indeed a standard secure PRF. Even though ...
... superposition queries to CBC mode, we get kk1 (more precisely, one bit of information about it for each superposition query). This reveals the key k completely and in particular shows that CBC is not IND-qCPA secure. The question of course is whether BCk is indeed a standard secure PRF. Even though ...
Spin Squeezing, Macrorealism and the Heisenberg uncertainty
... preexisting properties of a system and can be in principle obtained with an arbitrarily small perturbation of the input state [21, 175]. Even more strikingly, as noted first by Einstein, Podolsky and Rosen in their seminal paper [52], quantum mechanics predicts effects that are in explicit tension w ...
... preexisting properties of a system and can be in principle obtained with an arbitrarily small perturbation of the input state [21, 175]. Even more strikingly, as noted first by Einstein, Podolsky and Rosen in their seminal paper [52], quantum mechanics predicts effects that are in explicit tension w ...
