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Model for quantum noise in quantum systems
A quantum depolarizing channel is a model for quantum noise in quantum systems. The d {\displaystyle d} -dimensional depolarizing channel can be viewed
Quantum_depolarizing_channel
Foundational object in quantum communication theory
In quantum information theory, a quantum channel is a communication channel that can transmit quantum information, as well as classical information. An
Quantum_channel
Computer hardware technology that uses quantum mechanics
A quantum computer is a computer that represents and processes information using quantum states. Quantum computations exploit phenomena such as superposition
Quantum_computing
Secure communication method
exploit two communication channels: an insecure quantum channel and an authenticated classical channel. The quantum channel transmits signal states, which
Quantum_key_distribution
Loss of quantum coherence
all qubits of the N-qubit system are destroyed. Depolarizing is a non-unitary transformation on a quantum system which maps pure states to mixed states
Quantum_decoherence
Type of display device
A quantum dot display is a display device that uses quantum dots (QDs), semiconductor nanocrystals which can produce pure monochromatic red, green, and
Quantum_dot_display
Linear error correcting code
& Bob, and others. A 2025 study reported LDPC-CSS quantum codes for the quantum depolarizing channel whose numerical decoding performance approached the
Low-density_parity-check_code
Highest rate quantum information can be sent through a noisy quantum channel
noisy quantum channel from a sender to a receiver. It is also equal to the highest rate at which entanglement can be generated over the channel, and forward
Quantum_capacity
Networks connecting quantum processors
Quantum networks form an important element of quantum computing and quantum communication systems. Quantum networks facilitate the transmission of information
Quantum_network
Topological quantum error correcting code
The surface code is a topological quantum error correcting code, and an example of a stabilizer code, defined on a two-dimensional spin lattice. The first
Surface_code
Quantum error correction schemes can suppress the logical error rate arbitrarily low
exponential difficulty of simulating large quantum systems.[citation needed] At a 0.1% probability of a depolarizing error, the surface code would require
Threshold_theorem
Electrical signal encouraging a neuron to fire
synapses, the ion channel typically allows sodium into the cell, generating an excitatory postsynaptic current. This depolarizing current causes an increase
Excitatory postsynaptic potential
Excitatory_postsynaptic_potential
Mathematical tool in quantum physics
frequently used. Noise is often modelled via a depolarizing channel or an amplitude damping channel. Quantum tomography is a process by which, given a set
Density_matrix
certain channels being preferentially activated to regulate the strength and timing of quantal release. Estimating the time course of quantal release—how
Quantal neurotransmitter release
Quantal_neurotransmitter_release
Austrian quantum physicist (born 1945)
Zeilinger (German: [ˈanton ˈtsaɪlɪŋɐ]; born 20 May 1945) is an Austrian quantum physicist and Nobel laureate in physics of 2022. Zeilinger is professor
Anton_Zeilinger
)=\lambda \rho +(1-\lambda ){\mathsf {id}}/2} is the 2-dimensional depolarizing channel. The storage device consists of N {\displaystyle N} qubits, which
Noisy-storage_model
Voltages associated with muscle fibre
and arrives at the axon terminal, it causes a depolarization of the axon terminal and opens calcium channels. This causes the release of the neurotransmitters
End-plate_potential
Junction between motor neuron and muscle fiber
receptors, meaning they serve as ligand-gated ion channels. The binding of ACh to the receptor can depolarize the muscle fiber, causing a cascade that eventually
Neuromuscular_junction
Process in neuroscience
depending on the ion channels gated or modulated by the neurotransmitter receptor. Excitatory neurotransmitters produce depolarization of the postsynaptic
Summation_(neurophysiology)
Biological junctions through which neurons' signals can be sent
until it reaches the synapse. The electrical depolarization of the membrane at the synapse causes channels to open that are permeable to calcium ions.
Chemical_synapse
Quantum interpretation of neuroscience
of neuroscience investigating the idea that consciousness is formed by quantum effects in or between brain cells. Holonomic refers to representations
Holonomic_brain_theory
Form of neuroplasticity
and is due to the movement of depolarizing current down the cytoplasm and the intermittent placement of sodium channels on the Nodes of Ranvier. These
Nonsynaptic_plasticity
Detectable change in the internal or external surroundings
specific receptors. Salt and sour receptors are chemically gated ion channels, which depolarize the cell. Sweet, bitter, and umami receptors are called gustducins
Stimulus_(physiology)
Main inhibitory neurotransmitter in the mammalian brain
chloride channels: when activated by GABA, they allow the flow of chloride ions across the membrane of the cell. Whether this chloride flow is depolarizing (makes
GABA
Dynamic disturbance in a medium or field
experimentally confirmed. In the context of quantum field theory, the Dirac equation is reinterpreted to describe quantum fields corresponding to spin-1⁄2 particles
Wave
Synapse in the mammalian auditory central nervous system
the high chloride concentration in the terminal these receptors are depolarizing. Between the second and third postnatal weeks, around the time of hearing
Calyx_of_Held
Glutametergic neuronal junction that is typically inactive
strong postsynaptic depolarization to allow ion flux. Silent synapses were proposed as an explanation for differences in quantal content of excitatory
Silent_synapse
Impulse transmission between neurons
membrane. Na diffuses though Na voltage gated channels into postsynaptic dendrite triggering depolarization of the downstream neuron. Deactivation of the
Neurotransmission
Theory regarding color vision in humans
determined by the proportional excitation of these three cone types, i.e. their quantum catch. The levels of excitation of each cone type are the parameters that
Opponent_process
Local anesthetic
heart. Blocking sodium channels in the conduction system, as well as the muscle cells of the heart, raises the depolarization threshold, making the heart
Lidocaine
Derelict Japanese Earth observation satellite
cryogenic coolant system will be used to regulate the temperature of the quantum detectors. An image motion compensation mirror will be used to compensate
ADEOS_I
Type of activity in neurons
with transmitter release. In an action potential, calcium channels are opened by depolarization and release Ca2+ ions into the presynaptic cell. This causes
Synaptic_noise
Ability of a synapse to strengthen or weaken over time according to its activity
AMPA glutamate receptors. Opening of NMDA channels (which relates to the level of cellular depolarization) leads to a rise in post-synaptic Ca2+ concentration
Synaptic_plasticity
Chemoreceptors expressed in cell membranes of olfactory receptor neurons
opens cyclic nucleotide-gated ion channels which allow calcium and sodium ions to enter into the cell, depolarizing the olfactory receptor neuron and
Olfactory_receptor
Sense that detects smells
The Ca2+ in turn opens a Ca2+-activated chloride channel, leading to efflux of Cl−, further depolarizing the cell and triggering an action potential. Ca2+
Sense_of_smell
Activation The time-dependent opening of ion channels in response to a stimulus, typically membrane depolarization. Adaptation The phenomenon of sensory receptor
Glossary_of_neuroscience
Property of waves that can oscillate with more than one orientation
million revolutions per minute. Quantum Physics Plane of polarization Spin angular momentum of light Optics Depolarizer (optics) Fluorescence anisotropy
Polarization_(waves)
State of steady internal conditions maintained by living things
levels in the blood. High potassium concentrations in the plasma cause depolarization of the zona glomerulosa cells' membranes in the outer layer of the adrenal
Homeostasis
Genetic disorder
during depolarization, leading to decreased quantal content, in mutant versus wild-type expressing neurons. Neurons expressing mutant channels were also
Familial_hemiplegic_migraine
Response of the eye to light and dark
binds to and opens cGMP gated Na+ channels to allow sodium and calcium influx. Sodium influx contributes to depolarization while calcium influx increases
Adaptation_(eye)
Metabolic pathway
through proteins by hopping along chains of these cofactors. This occurs by quantum tunnelling, which is rapid over distances of less than 1.4×10−9 m. Many
Oxidative_phosphorylation
In neurophysiology, a reduction of neuronal synapse efficacy
AMPAR-mediated depolarization induces a regenerative action potential that spreads to the dendrites, which is generated by voltage-gated calcium channels. Paired
Long-term_depression
known for the contributions to quantum field theory through the study of scattering amplitudes, in particular in quantum chromodynamics, N = 4 supersymmetric
Science and technology in Venezuela
Science_and_technology_in_Venezuela
– dengue – denitrification – deoxyribonucleic acid – deoxyribose – depolarization – desmosome – deuterostome – diabetes mellitus – diastole – diffusion
Index_of_biology_articles
showed that channelrhodopsin-2 (ChR2) is a light-gated cation channel that can depolarize the cells in which it is expressed. During CEF, the Bamberg lab
Cluster of Excellence Frankfurt Macromolecular Complexes
Cluster_of_Excellence_Frankfurt_Macromolecular_Complexes
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