qubit state
Qubit-flip-induced cavity mode squeezing in the strong dispersive regime of the quantum Rabi model
... Squeezed states of light are a set of nonclassical states in which the quantum fluctuations of one quadrature component are reduced below the standard quantum limit. With less noise than the best stabilised laser ...
16
Controlled phase gate for solid-state charge-qubit architectures
... In particular, we have shown explicitly how to realize a controlled phase gate, i.e., a universal, maximally en- tangling two-qubit gate by a simple four-step procedure. The crucial step in the sequence is the ...
15
Collapse and revival of entanglement between qubits coupled to a spin coherent state
... where i indicates the number of the discrete events and ∆ is still the distribution width. As this number i increases, the function tends towards resembling a normal distribu- tion in the continuous regime. When using ...
10
Linear, Bidirectional and Circular Controlled Quantum Teleportation and Quantum State Sharing using a Seven Qubit Genuinely Entangled State
... resource state (35), one can present generalised conditions and transformations required for the teleportation of an n-qubit ...higher state-level ...
50
Quantum Steering Ellipsoids
... the state space of the most primitive quantum unit—the qubit — resulting in geometric intuitions that are invaluable in countless fundamental information-processing ...two-qubit state space is ...
5
Qubit decoherence due to detector switching
... in qubit detec- ...pative state and is driven by quantum fluctuations, and the Josephson bifurcation ampli- fier (JBA) [–], which has been employed in the delicate task of detecting a qubit ...
10
Estimating the expectation values of spin-1/2 observables with finite resources
... Suppose we have 2N copies of some unknown pure qubit state and we wish to learn the expectation val- ues of the spin observables ˆ A = a · σ ˆ and ˆ B = b · σ ˆ , where a and b are unit vectors. The most ...
11
Symmetric bidirectional quantum teleportation via five-qubit cluster state
... cluster state. Based on the Bell-state measurements, introduces an auxiliary particle and perform joint unitary transformation, Alice wants to transmit an arbitrary two-qubit entangled state ...
10
Generation and Application of Nested Entanglement in Matryoshka Quantum Resource-States
... single qubit state using a channel comprising of an EPR pair was first demonstrated by Bennett et al ...remote state sharing as well as superdense coding of arbitrary quantum states ...
16
Clifford algebras and geometry of entanglement
... For the single qubit case, both pure and mixed states are discussed explicitly in terms of the Clifford algebra description along with the `mixedness' of a single qubit state, and the Ri[r] ...
90
Quantum Error Detection by Stabiliser Measurements in a Logical Qubit
... three-data-qubit state into subspaces stabilised by the ...gled state by this projection from a maximal superposition, and the gene- sis is witnessed to have genuine tripartite ...logical ...
87
Quantum Coherence, Time-Translation Symmetry, and Thermodynamics
... pure qubit state allows for extracting kT ln 2 of mechanical work from a heat ...the qubit state jψ β i ∝ j0i þ p ffiffiffiffiffiffiffi e −β ...this state from the Gibbs equilbrium state γ ...
11
Modified BB84 Protocol Using CCD Technology
... a qubit, that qubit can choose any of the two paths based on the electric fields applied to the ...the state of the qubit should change hence the actual data gets ma- ...coming qubit ...
8
Extension of the Alberti-Ulhmann criterion beyond qubit dichotomies
... a qubit measure- ment, a justified assumption since such distri- butions belong to the range of, for example, a trine qubit measurement, that is, a measurement whose elements lie on the vertices of a regu- ...
10
Single-shot security for one-time memories in the isolated qubits model
... single- qubit measurements, and can make adaptive choices based on the clas- sical information returned by these measurements; but the adversary cannot perform entangling operations on sets of two or more ...
18
Fractional Langevin Equation in Quantum Systems with Memory Effect
... Application of the fractional calculus on physics has attracted an increasing attention this decade including physical kinetics [1], anomalous transport theory in solid-state physics [2], and nonlinear dynamics ...
10
Entanglement and Closest Product States of Graph States with 9 to 11 Qubits
... Graph states a associated to tions in quant tum computer measures hav states, such as [8], the Relati Geometric M ment measure known that th Thus these en state. The geo to its closest entanglement been calculate ...
5
The geometry of single-qubit maps
... the state of a system are physically ...the qubit, or two-level system, and study the possible evolutions of the ...general qubit map [2]. The geometry of single-qubit channels provides a ...
10
Gollub, Caroline (2009): Femtosecond quantum control studies on vibrational quantum information processing. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... Many applications of coherent control with shaped femtosecond laser pulses have been presented so far in theory and experiment, where the fields of research reach from biology to chemistry and physics. An application, ...
173
Reexamination of pure qubit work extraction
... the qubit and the ...the qubit is being thermalized and the joint system’s populations start to shift, less force is needed to reduce the coupling back to zero, ...
13