Unlike the electrically neutral photon of quantum electrodynamics ( QED ), gluons themselves carry color charge and therefore participate in the strong interaction in addition to mediating it, making QCD significantly harder to analyze than QED.

Unlike quantum physics, classical physics is generally characterized by the principle of complete determinism ( although the Many-worlds interpretation of quantum mechanics is in a sense deterministic ).

Unlike the determinant, the permanent has no easy geometrical interpretation ; it is mainly used in combinatorics and in treating boson Green's functions in quantum field theory.

Unlike local quantum field theory, the Wightman axioms restrict the causal structure of the theory explicitly by imposing either commutativity or anticommutativity between spacelike separated fields, instead of deriving the causal structure as a theorem.

Unlike the partition function in statistical mechanics, that in quantum field theory contains an extra factor of i in front of the action, making the integrand complex, not real.

Unlike previous methods, the path-integral allows a physicist to easily change coordinates between very different canonical descriptions of the same quantum system.

Unlike RSA or ECC, NTRU is currently not known to be vulnerable to quantum computer based attacks.

Unlike many quantum computation schemes, the Kane quantum computer is in principle scalable to an arbitrary number of qubits.

Unlike many classical logic gates, quantum logic gates are reversible.

Unlike the classical conditional entropy, the conditional quantum entropy can be negative.

( Unlike standard quantum mechanics, where particles and waves are considered to be the same entities, connected by wave-particle duality.

Unlike ordinary quantum field theory or quantum mechanics, the Hamiltonian is a first class constraint on physical states.

Unlike the Schrödinger equation, it never describes the time evolution of a quantum state.

Unlike other physical implementations of a qubit which involve truly two-level systems, such as nuclear spin and photon polarization, the integrated quantum circuit involved in a superconducting qubit is a many-level system, of which only the first two levels are used as the computational basis.

Unlike a measurement on a single system, which determines the system's current state after the measurement ( in general, the act of making a measurement alters the quantum state ), quantum tomography works to determine the state ( s ) prior to the measurements.

Unlike in DFT, there is no general minimization principle in time-dependent quantum mechanics.

Unlike typical interband semiconductor lasers that emit electromagnetic radiation through the recombination of electron – hole pairs across the material band gap, QCLs are unipolar and laser emission is achieved through the use of intersubband transitions in a repeated stack of semiconductor multiple quantum well heterostructures, an idea first proposed in the paper " Possibility of amplification of electromagnetic waves in a semiconductor with a superlattice " by R. F.

Unlike the three body problem in classical mechanics, the quantum three body problem is uniformly soluble.

Unlike macroscopic motion, molecular systems are constantly undergoing significant dynamic motions subject to the laws of Brownian mechanics ( or Brownian motion ), and as such, harnessing molecular motion is a far more difficult process.

Unlike his younger brother, Joe, he never presumed to address her more familiarly than as `` My dear friend '', although he praised and envied the elegance and purity of her style.

Unlike bony fish, there is no direct control of the pigment cells by the nervous system, and this results in the colour change taking place more slowly than happens in fish.

Unlike the Muslim world, which has a geo-political and cultural definition that provides a primary identifier for a large swath of the world, Christendom is more complex.

Unlike Coronation Street which had a very nostalgic view of working-class life, Brookside brought together working and middle-class families in a more contemporary environment.

Unlike other anime and manga, where jokes and references are often exclusory or require knowledge of Japanese culture and / or the workings and conventions of anime, Cowboy Bebop is accessible – western audiences can connect with the characters readily and more fully understand their motivations and struggles.

Unlike other schemes, this definition includes the objects with major semi-axis less than 39. 4 AU ( 2: 3 resonance ) – named Inner classical belt, or more than 48. 7 ( 1: 2 resonance ) – named Outer classical belt while reserving the term Main classical belt for the orbits between these two resonances.

Unlike other leftist punk bands who use more direct sloganeering, Dead Kennedys ' lyrics were often snide.

Unlike Swedish and Norwegian, Danish does not have more than one regional speech norm.

Unlike the anime and manga ( some based on the stories in select volumes ), they are more action-adventure oriented and have more of a shōnen demographic, taking the familiar characters of Doraemon and placing them in a variety of exotic and perilous settings.

Unlike later writers, Homeric lines more commonly employ the feminine caesura ; an example occurs in Iliad I. 5 “... and every bird ; thus the plan of Zeus came to fulfillment ”:

Unlike conventional backlit flat panel displays which emit light, electronic paper displays reflect light like ordinary paper, making it more comfortable to read, and the surface has a wider viewing angle than conventional displays.

Unlike other, more traditional forms of higher education, open education generally does not offer recognized degrees.

Unlike other languages, having notions of " public ", " private " and so on, Eiffel uses an exporting technology to more precisely control the scoping between client and supplier classes.

Unlike the Progressive Era's conservation movement ( 1890s-1920s ), which was largely elitist consisting of largely of wealthy, political powerful men the modern environmental movement was a social movement with more popular support.

Unlike Common Lisp, Scheme existed at the time Stallman was rewriting Gosling Emacs into GNU Emacs, but he chose not to use it because of its comparatively poor performance on workstations, and he wanted to develop a dialect which he thought would be more easily optimized.

Unlike many on the left, instead of abandoning socialism once he discovered the full horror of Stalinist rule in the Soviet Union, Orwell abandoned the Soviet Union and instead remained a socialist — indeed he became more committed to the socialist cause than ever.

Unlike their parents who challenged leaders with an intent to replace them, Gen Xers tend to ignore leaders and work for more long term institutional and systematic change through economic, media and consumer actions.

Unlike Alan Jackson, who refused to return to the UK after being treated in a similar manner by the press, Brooks returned in 1996 for more sold-out concerts, although this time his media appearances were mostly restricted to country radio and interviews with magazines.

Unlike mercury, liquid gallium metal wets glass and skin, making it mechanically more difficult to handle ( even though it is substantially less toxic and requires far fewer precautions ).

Unlike the traditional, more humanlike gnomes, they can have a wide variety of physical features and skin colours.

Unlike the later Gilbert and Sullivan works, it was hastily prepared, and its nature was more risqué, like Gilbert's earlier burlesques, with a broader style of comedy that allowed for improvisation by the actors.

Unlike in more northerly latitudes, temperatures in the tropics vary primarily with elevation instead of with the season.

Unlike many of its more export-dependent neighbors, it has managed to skirt the recession, helped by strong domestic demand ( which makes up about two-thirds of the economy ) and a government fiscal stimulus package of about 1. 4 % of GDP, announced earlier this year.